diff --git a/src/components/callbacks/import_csv_callbacks.rs b/src/components/callbacks/import_csv_callbacks.rs
new file mode 100644
index 0000000..a10b6a3
--- /dev/null
+++ b/src/components/callbacks/import_csv_callbacks.rs
@@ -0,0 +1,308 @@
+use std::collections::HashSet;
+
+use js_sys::Array;
+use lazy_static::lazy_static;
+use regex::Regex;
+use wasm_bindgen::{prelude::*, JsCast, JsValue};
+use web_sys::{
+    Blob, FileReader, HtmlAnchorElement, HtmlButtonElement, HtmlDialogElement, HtmlElement,
+    HtmlFormElement, HtmlInputElement, HtmlOptionElement, HtmlSelectElement, Url,
+};
+use yew::prelude::*;
+use yewdux::prelude::*;
+
+use crate::components::states::{CurrentTransfer, MainState};
+use crate::components::transfer_menu::letters_to_num;
+
+use crate::data::transfer::Transfer;
+use crate::data::transfer_region::{Region, TransferRegion};
+
+use crate::data::csv::{state_to_csv, TransferRecord};
+
+use super::main_window_callbacks::create_close_button;
+
+type NoParamsCallback = Box<dyn Fn(()) -> ()>;
+
+pub fn import_transfer_csv_input_callback(
+    main_dispatch: Dispatch<MainState>,
+    modal: HtmlDialogElement,
+) -> Closure<dyn FnMut(Event)> {
+    Closure::<dyn FnMut(_)>::new(move |e: Event| {
+        if let Some(input) = e.current_target() {
+            let input = input
+                .dyn_into::<HtmlInputElement>()
+                .expect("We know this is an input.");
+            if let Some(files) = input.files() {
+                if let Some(file) = files.get(0) {
+                    let fr = web_sys::FileReader::new().unwrap();
+                    fr.read_as_text(&file).unwrap();
+                    let fr1 = fr.clone(); // Clone to avoid outliving closure
+                    let main_dispatch = main_dispatch.clone(); // Clone to satisfy FnMut
+                                                               // trait
+                    let modal = modal.clone();
+                    let onload = import_transfer_csv_onload_callback(main_dispatch, fr1, modal);
+                    fr.set_onload(Some(onload.as_ref().unchecked_ref()));
+                    onload.forget(); // Magic (don't touch)
+                }
+            }
+        }
+    })
+}
+
+pub fn import_transfer_csv_callback(main_dispatch: Dispatch<MainState>) -> Callback<MouseEvent> {
+    Callback::from(move |_| {
+        let window = web_sys::window().unwrap();
+        let document = window.document().unwrap();
+        let body = document.body().unwrap();
+        let modal = document
+            .create_element("dialog")
+            .unwrap()
+            .dyn_into::<HtmlDialogElement>()
+            .unwrap();
+        modal.set_text_content(Some("Import File:"));
+        let onclose_callback = {
+            let modal = modal.clone();
+            Closure::<dyn FnMut(_)>::new(move |_: Event| {
+                modal.remove();
+            })
+        };
+        modal.set_onclose(Some(onclose_callback.as_ref().unchecked_ref()));
+
+        let close_button = create_close_button(&onclose_callback);
+        onclose_callback.forget();
+        modal.append_child(&close_button).unwrap();
+
+        let form = document
+            .create_element("form")
+            .unwrap()
+            .dyn_into::<HtmlFormElement>()
+            .unwrap();
+        let input = document
+            .create_element("input")
+            .unwrap()
+            .dyn_into::<HtmlInputElement>()
+            .unwrap();
+        input.set_type("file");
+        input.set_accept(".csv");
+        form.append_child(&input).unwrap();
+
+        let input_callback = {
+            let main_dispatch = main_dispatch.clone();
+            let modal = modal.clone();
+            import_transfer_csv_input_callback(main_dispatch, modal)
+        };
+        input.set_onchange(Some(input_callback.as_ref().unchecked_ref()));
+        input_callback.forget(); // Magic straight from the docs, don't touch :(
+
+        modal.append_child(&form).unwrap();
+        body.append_child(&modal).unwrap();
+        modal.show_modal().unwrap();
+    })
+}
+
+pub fn import_transfer_csv_onload_callback(
+    main_dispatch: Dispatch<MainState>,
+    file_reader: FileReader,
+    modal: HtmlDialogElement,
+) -> Closure<dyn FnMut(Event)> {
+    Closure::<dyn FnMut(_)>::new(move |_: Event| {
+        if let Some(value) = &file_reader.result().ok().and_then(|v| v.as_string()) {
+            let mut rdr = csv::Reader::from_reader(value.as_bytes());
+            let mut records = Vec::new();
+            for record in rdr.deserialize::<crate::data::csv::TransferRecord>() {
+                match record {
+                    Ok(r) => {
+                        //log::debug!("{:?}", r);
+                        records.push(r);
+                    }
+                    Err(e) => {
+                        log::debug!("{:?}", e);
+                    }
+                }
+            }
+
+            let mut sources: HashSet<String> = HashSet::new();
+            let mut destinations: HashSet<String> = HashSet::new();
+            for record in records.iter() {
+                sources.insert(record.source_plate.clone());
+                destinations.insert(record.destination_plate.clone());
+            }
+
+            let window = web_sys::window().unwrap();
+            let document = window.document().unwrap();
+            let form = document
+                .create_element("form")
+                .unwrap()
+                .dyn_into::<HtmlFormElement>()
+                .unwrap();
+            let from_source = document
+                .create_element("select")
+                .unwrap()
+                .dyn_into::<HtmlSelectElement>()
+                .unwrap();
+            for source in sources {
+                let option = document
+                    .create_element("option")
+                    .unwrap()
+                    .dyn_into::<HtmlOptionElement>()
+                    .unwrap();
+                option.set_value(&source);
+                option.set_text(&source);
+                from_source.append_child(&option).unwrap();
+            }
+            let to_source = document
+                .create_element("select")
+                .unwrap()
+                .dyn_into::<HtmlSelectElement>()
+                .unwrap();
+            for source in &main_dispatch.get().source_plates {
+                let option = document
+                    .create_element("option")
+                    .unwrap()
+                    .dyn_into::<HtmlOptionElement>()
+                    .unwrap();
+                option.set_value(&source.name);
+                option.set_text(&source.name);
+                to_source.append_child(&option).unwrap();
+            }
+            let from_dest = document
+                .create_element("select")
+                .unwrap()
+                .dyn_into::<HtmlSelectElement>()
+                .unwrap();
+            for dest in destinations {
+                let option = document
+                    .create_element("option")
+                    .unwrap()
+                    .dyn_into::<HtmlOptionElement>()
+                    .unwrap();
+                option.set_value(&dest);
+                option.set_text(&dest);
+                from_dest.append_child(&option).unwrap();
+            }
+            let to_dest = document
+                .create_element("select")
+                .unwrap()
+                .dyn_into::<HtmlSelectElement>()
+                .unwrap();
+            for dest in &main_dispatch.get().destination_plates {
+                let option = document
+                    .create_element("option")
+                    .unwrap()
+                    .dyn_into::<HtmlOptionElement>()
+                    .unwrap();
+                option.set_value(&dest.name);
+                option.set_text(&dest.name);
+                to_dest.append_child(&option).unwrap();
+            }
+            let submit = document
+                .create_element("button")
+                .unwrap()
+                .dyn_into::<HtmlButtonElement>()
+                .unwrap();
+            submit.set_value("Submit");
+            submit.set_inner_text("Submit");
+            let submit_callback = {
+                let main_dispatch = main_dispatch.clone();
+                let from_source = from_source.clone();
+                let to_source = to_source.clone();
+                let from_dest = from_dest.clone();
+                let to_dest = to_dest.clone();
+                import_transfer_csv_submit_callback(
+                    main_dispatch,
+                    from_source,
+                    to_source,
+                    from_dest,
+                    to_dest,
+                    records,
+                )
+            };
+            submit.set_onclick(Some(submit_callback.as_ref().unchecked_ref()));
+            submit_callback.forget();
+
+            form.append_child(&from_source).unwrap();
+            form.append_child(&to_source).unwrap();
+            form.append_child(&from_dest).unwrap();
+            form.append_child(&to_dest).unwrap();
+            modal.append_child(&submit).unwrap();
+            modal.append_child(&form).unwrap();
+        }
+    })
+}
+
+pub fn import_transfer_csv_submit_callback(
+    main_dispatch: Dispatch<MainState>,
+    from_source: HtmlSelectElement,
+    to_source: HtmlSelectElement,
+    from_dest: HtmlSelectElement,
+    to_dest: HtmlSelectElement,
+    records: Vec<TransferRecord>,
+) -> Closure<dyn FnMut(Event)> {
+    Closure::<dyn FnMut(_)>::new(move |_: Event| {
+        let from_source = from_source.value();
+        let to_source = to_source.value();
+        let from_dest = from_dest.value();
+        let to_dest = to_dest.value();
+
+        lazy_static! {
+            static ref REGEX: Regex = Regex::new(r"([A-Z]+)(\d+)").unwrap();
+        }
+        let records: Vec<((u8, u8), (u8, u8))> = records
+            .iter()
+            .filter(|record| record.source_plate == from_source)
+            .filter(|record| record.destination_plate == from_dest)
+            .map(|record| {
+                let c1 = REGEX.captures(&record.source_well).unwrap();
+                let c2 = REGEX.captures(&record.destination_well).unwrap();
+                log::debug!("{} {}", &record.source_well, &record.destination_well);
+                log::debug!("{},{}  {},{}", &c1[1], &c1[2], &c2[1], &c2[2]);
+
+                (
+                    (
+                        letters_to_num(&c1[1]).unwrap(),
+                        c1[2].parse::<u8>().unwrap(),
+                    ),
+                    (
+                        letters_to_num(&c2[1]).unwrap(),
+                        c2[2].parse::<u8>().unwrap(),
+                    ),
+                )
+            })
+            .collect();
+
+        let spi = main_dispatch
+            .get()
+            .source_plates
+            .iter()
+            .find(|src| src.name == to_source)
+            .unwrap()
+            .clone();
+        let dpi = main_dispatch
+            .get()
+            .destination_plates
+            .iter()
+            .find(|dest| dest.name == to_dest)
+            .unwrap()
+            .clone();
+
+        let custom_region = Region::new_custom(&records);
+        let transfer_region = TransferRegion {
+            source_region: custom_region.clone(),
+            dest_region: custom_region,
+            interleave_source: (1, 1),
+            interleave_dest: (1, 1),
+            source_plate: spi.plate,
+            dest_plate: dpi.plate,
+        };
+
+        let transfer = Transfer::new(spi, dpi, transfer_region, "Custom Transfer".to_string());
+        main_dispatch.reduce_mut(|state| {
+            state.transfers.push(transfer);
+            state.selected_transfer = state
+                .transfers
+                .last()
+                .expect("An element should have just been added")
+                .get_uuid();
+        });
+    })
+}
diff --git a/src/components/callbacks/main_window_callbacks.rs b/src/components/callbacks/main_window_callbacks.rs
index f94f9a5..3213792 100644
--- a/src/components/callbacks/main_window_callbacks.rs
+++ b/src/components/callbacks/main_window_callbacks.rs
@@ -22,7 +22,7 @@ use crate::data::csv::{state_to_csv, TransferRecord};
 
 type NoParamsCallback = Box<dyn Fn(()) -> ()>;
 
-fn create_close_button(close: &Closure<dyn FnMut(Event)>) -> HtmlElement {
+pub fn create_close_button(close: &Closure<dyn FnMut(Event)>) -> HtmlElement {
     let document = web_sys::window().unwrap().document().unwrap();
     let close_button = document
         .create_element("button")
@@ -216,287 +216,10 @@ pub fn import_json_button_callback(main_dispatch: Dispatch<MainState>) -> Callba
     })
 }
 
-pub fn import_transfer_csv_submit_callback(
-    main_dispatch: Dispatch<MainState>,
-    from_source: HtmlSelectElement,
-    to_source: HtmlSelectElement,
-    from_dest: HtmlSelectElement,
-    to_dest: HtmlSelectElement,
-    records: Vec<TransferRecord>,
-) -> Closure<dyn FnMut(Event)> {
-    Closure::<dyn FnMut(_)>::new(move |_: Event| {
-        let from_source = from_source.value();
-        let to_source = to_source.value();
-        let from_dest = from_dest.value();
-        let to_dest = to_dest.value();
+pub use super::import_csv_callbacks::import_transfer_csv_callback;
 
-        lazy_static! {
-            static ref REGEX: Regex = Regex::new(r"([A-Z]+)(\d+)").unwrap();
-        }
-        let records: Vec<((u8, u8), (u8, u8))> = records
-            .iter()
-            .filter(|record| record.source_plate == from_source)
-            .filter(|record| record.destination_plate == from_dest)
-            .map(|record| {
-                let c1 = REGEX.captures(&record.source_well).unwrap();
-                let c2 = REGEX.captures(&record.destination_well).unwrap();
-                log::debug!("{} {}", &record.source_well, &record.destination_well);
-                log::debug!("{},{}  {},{}", &c1[1], &c1[2], &c2[1], &c2[2]);
+pub use super::import_csv_callbacks::import_transfer_csv_submit_callback;
 
-                (
-                    (
-                        letters_to_num(&c1[1]).unwrap(),
-                        c1[2].parse::<u8>().unwrap(),
-                    ),
-                    (
-                        letters_to_num(&c2[1]).unwrap(),
-                        c2[2].parse::<u8>().unwrap(),
-                    ),
-                )
-            })
-            .collect();
-
-        let spi = main_dispatch
-            .get()
-            .source_plates
-            .iter()
-            .find(|src| src.name == to_source)
-            .unwrap()
-            .clone();
-        let dpi = main_dispatch
-            .get()
-            .destination_plates
-            .iter()
-            .find(|dest| dest.name == to_dest)
-            .unwrap()
-            .clone();
-
-        let custom_region = Region::new_custom(&records);
-        let transfer_region = TransferRegion {
-            source_region: custom_region.clone(),
-            dest_region: custom_region,
-            interleave_source: (1, 1),
-            interleave_dest: (1, 1),
-            source_plate: spi.plate,
-            dest_plate: dpi.plate,
-        };
-
-        let transfer = Transfer::new(spi, dpi, transfer_region, "Custom Transfer".to_string());
-        main_dispatch.reduce_mut(|state| {
-            state.transfers.push(transfer);
-            state.selected_transfer = state
-                .transfers
-                .last()
-                .expect("An element should have just been added")
-                .get_uuid();
-        });
-    })
-}
-
-pub fn import_transfer_csv_onload_callback(
-    main_dispatch: Dispatch<MainState>,
-    file_reader: FileReader,
-    modal: HtmlDialogElement,
-) -> Closure<dyn FnMut(Event)> {
-    Closure::<dyn FnMut(_)>::new(move |_: Event| {
-        if let Some(value) = &file_reader.result().ok().and_then(|v| v.as_string()) {
-            let mut rdr = csv::Reader::from_reader(value.as_bytes());
-            let mut records = Vec::new();
-            for record in rdr.deserialize::<crate::data::csv::TransferRecord>() {
-                match record {
-                    Ok(r) => {
-                        //log::debug!("{:?}", r);
-                        records.push(r);
-                    }
-                    Err(e) => {
-                        log::debug!("{:?}", e);
-                    }
-                }
-            }
-
-            let mut sources: HashSet<String> = HashSet::new();
-            let mut destinations: HashSet<String> = HashSet::new();
-            for record in records.iter() {
-                sources.insert(record.source_plate.clone());
-                destinations.insert(record.destination_plate.clone());
-            }
-
-            let window = web_sys::window().unwrap();
-            let document = window.document().unwrap();
-            let form = document
-                .create_element("form")
-                .unwrap()
-                .dyn_into::<HtmlFormElement>()
-                .unwrap();
-            let from_source = document
-                .create_element("select")
-                .unwrap()
-                .dyn_into::<HtmlSelectElement>()
-                .unwrap();
-            for source in sources {
-                let option = document
-                    .create_element("option")
-                    .unwrap()
-                    .dyn_into::<HtmlOptionElement>()
-                    .unwrap();
-                option.set_value(&source);
-                option.set_text(&source);
-                from_source.append_child(&option).unwrap();
-            }
-            let to_source = document
-                .create_element("select")
-                .unwrap()
-                .dyn_into::<HtmlSelectElement>()
-                .unwrap();
-            for source in &main_dispatch.get().source_plates {
-                let option = document
-                    .create_element("option")
-                    .unwrap()
-                    .dyn_into::<HtmlOptionElement>()
-                    .unwrap();
-                option.set_value(&source.name);
-                option.set_text(&source.name);
-                to_source.append_child(&option).unwrap();
-            }
-            let from_dest = document
-                .create_element("select")
-                .unwrap()
-                .dyn_into::<HtmlSelectElement>()
-                .unwrap();
-            for dest in destinations {
-                let option = document
-                    .create_element("option")
-                    .unwrap()
-                    .dyn_into::<HtmlOptionElement>()
-                    .unwrap();
-                option.set_value(&dest);
-                option.set_text(&dest);
-                from_dest.append_child(&option).unwrap();
-            }
-            let to_dest = document
-                .create_element("select")
-                .unwrap()
-                .dyn_into::<HtmlSelectElement>()
-                .unwrap();
-            for dest in &main_dispatch.get().destination_plates {
-                let option = document
-                    .create_element("option")
-                    .unwrap()
-                    .dyn_into::<HtmlOptionElement>()
-                    .unwrap();
-                option.set_value(&dest.name);
-                option.set_text(&dest.name);
-                to_dest.append_child(&option).unwrap();
-            }
-            let submit = document
-                .create_element("button")
-                .unwrap()
-                .dyn_into::<HtmlButtonElement>()
-                .unwrap();
-            submit.set_value("Submit");
-            submit.set_inner_text("Submit");
-            let submit_callback = {
-                let main_dispatch = main_dispatch.clone();
-                let from_source = from_source.clone();
-                let to_source = to_source.clone();
-                let from_dest = from_dest.clone();
-                let to_dest = to_dest.clone();
-                import_transfer_csv_submit_callback(
-                    main_dispatch,
-                    from_source,
-                    to_source,
-                    from_dest,
-                    to_dest,
-                    records,
-                )
-            };
-            submit.set_onclick(Some(submit_callback.as_ref().unchecked_ref()));
-            submit_callback.forget();
-
-            form.append_child(&from_source).unwrap();
-            form.append_child(&to_source).unwrap();
-            form.append_child(&from_dest).unwrap();
-            form.append_child(&to_dest).unwrap();
-            modal.append_child(&submit).unwrap();
-            modal.append_child(&form).unwrap();
-        }
-    })
-}
-
-pub fn import_transfer_csv_input_callback(
-    main_dispatch: Dispatch<MainState>,
-    modal: HtmlDialogElement,
-) -> Closure<dyn FnMut(Event)> {
-    Closure::<dyn FnMut(_)>::new(move |e: Event| {
-        if let Some(input) = e.current_target() {
-            let input = input
-                .dyn_into::<HtmlInputElement>()
-                .expect("We know this is an input.");
-            if let Some(files) = input.files() {
-                if let Some(file) = files.get(0) {
-                    let fr = web_sys::FileReader::new().unwrap();
-                    fr.read_as_text(&file).unwrap();
-                    let fr1 = fr.clone(); // Clone to avoid outliving closure
-                    let main_dispatch = main_dispatch.clone(); // Clone to satisfy FnMut
-                                                               // trait
-                    let modal = modal.clone();
-                    let onload = import_transfer_csv_onload_callback(main_dispatch, fr1, modal);
-                    fr.set_onload(Some(onload.as_ref().unchecked_ref()));
-                    onload.forget(); // Magic (don't touch)
-                }
-            }
-        }
-    })
-}
-
-pub fn import_transfer_csv_callback(main_dispatch: Dispatch<MainState>) -> Callback<MouseEvent> {
-    Callback::from(move |_| {
-        let window = web_sys::window().unwrap();
-        let document = window.document().unwrap();
-        let body = document.body().unwrap();
-        let modal = document
-            .create_element("dialog")
-            .unwrap()
-            .dyn_into::<HtmlDialogElement>()
-            .unwrap();
-        modal.set_text_content(Some("Import File:"));
-        let onclose_callback = {
-            let modal = modal.clone();
-            Closure::<dyn FnMut(_)>::new(move |_: Event| {
-                modal.remove();
-            })
-        };
-        modal.set_onclose(Some(onclose_callback.as_ref().unchecked_ref()));
-
-        let close_button = create_close_button(&onclose_callback);
-        onclose_callback.forget();
-        modal.append_child(&close_button).unwrap();
-
-        let form = document
-            .create_element("form")
-            .unwrap()
-            .dyn_into::<HtmlFormElement>()
-            .unwrap();
-        let input = document
-            .create_element("input")
-            .unwrap()
-            .dyn_into::<HtmlInputElement>()
-            .unwrap();
-        input.set_type("file");
-        input.set_accept(".csv");
-        form.append_child(&input).unwrap();
-
-        let input_callback = {
-            let main_dispatch = main_dispatch.clone();
-            let modal = modal.clone();
-            import_transfer_csv_input_callback(main_dispatch, modal)
-        };
-        input.set_onchange(Some(input_callback.as_ref().unchecked_ref()));
-        input_callback.forget(); // Magic straight from the docs, don't touch :(
-
-        modal.append_child(&form).unwrap();
-        body.append_child(&modal).unwrap();
-        modal.show_modal().unwrap();
-    })
-}
+pub use super::import_csv_callbacks::import_transfer_csv_onload_callback;
 
+pub use super::import_csv_callbacks::import_transfer_csv_input_callback;
diff --git a/src/components/callbacks/mod.rs b/src/components/callbacks/mod.rs
index 175182a..daec33c 100644
--- a/src/components/callbacks/mod.rs
+++ b/src/components/callbacks/mod.rs
@@ -2,3 +2,4 @@ pub mod main_window_callbacks;
 pub mod new_plate_dialog_callbacks;
 pub mod transfer_menu_callbacks;
 pub mod tree_callbacks;
+mod import_csv_callbacks;