diff --git a/src/components/callbacks/mod.rs b/src/components/callbacks/mod.rs
index dacd723..175182a 100644
--- a/src/components/callbacks/mod.rs
+++ b/src/components/callbacks/mod.rs
@@ -1,3 +1,4 @@
 pub mod main_window_callbacks;
 pub mod new_plate_dialog_callbacks;
 pub mod transfer_menu_callbacks;
+pub mod tree_callbacks;
diff --git a/src/components/callbacks/tree_callbacks.rs b/src/components/callbacks/tree_callbacks.rs
new file mode 100644
index 0000000..68db2e4
--- /dev/null
+++ b/src/components/callbacks/tree_callbacks.rs
@@ -0,0 +1,114 @@
+use std::rc::Rc;
+use uuid::Uuid;
+use wasm_bindgen::JsCast;
+use web_sys::{EventTarget, HtmlElement};
+use yew::prelude::*;
+use yewdux::prelude::*;
+
+use crate::components::states::{CurrentTransfer, MainState};
+use crate::data::transfer_region::Region;
+
+pub fn open_plate_info_callback(
+    plate_menu_id: UseStateHandle<Option<Uuid>>,
+) -> Callback<MouseEvent> {
+    Callback::from(move |e: MouseEvent| {
+        let target: Option<EventTarget> = e.target();
+        let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
+        if let Some(li) = li {
+            if let Ok(id) = li.id().as_str().parse::<u128>() {
+                plate_menu_id.set(Some(Uuid::from_u128(id)));
+            }
+        }
+    })
+}
+
+pub fn plate_info_close_callback(
+    plate_menu_id: UseStateHandle<Option<Uuid>>,
+) -> Callback<MouseEvent> {
+    Callback::from(move |_| {
+        plate_menu_id.set(None);
+    })
+}
+
+pub fn plate_info_delete_callback(
+    main_dispatch: Dispatch<MainState>,
+    plate_menu_id: UseStateHandle<Option<Uuid>>,
+) -> Callback<MouseEvent> {
+    Callback::from(move |_| {
+        if let Some(id) = *plate_menu_id {
+            main_dispatch.reduce_mut(|state| {
+                state.del_plate(id);
+            });
+        }
+    })
+}
+
+pub fn source_plate_select_callback(
+    main_dispatch: Dispatch<MainState>,
+    ct_dispatch: Dispatch<CurrentTransfer>,
+) -> Callback<MouseEvent> {
+    Callback::from(move |e: MouseEvent| {
+        let target: Option<EventTarget> = e.target();
+        let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
+        if let Some(li) = li {
+            if let Ok(id) = li.id().as_str().parse::<u128>() {
+                ct_dispatch.reduce_mut(|state| {
+                    state.transfer.transfer_region.source_region = Region::default();
+                    state.transfer.transfer_region.dest_region = Region::default();
+                });
+                main_dispatch.reduce_mut(|state| {
+                    state.selected_source_plate = Uuid::from_u128(id);
+                    state.selected_transfer = Uuid::nil();
+                });
+            }
+        }
+    })
+}
+
+pub fn destination_plate_select_callback(
+    main_dispatch: Dispatch<MainState>,
+    ct_dispatch: Dispatch<CurrentTransfer>,
+) -> Callback<MouseEvent> {
+    Callback::from(move |e: MouseEvent| {
+        let target: Option<EventTarget> = e.target();
+        let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
+        if let Some(li) = li {
+            if let Ok(id) = li.id().as_str().parse::<u128>() {
+                ct_dispatch.reduce_mut(|state| {
+                    state.transfer.transfer_region.source_region = Region::default();
+                    state.transfer.transfer_region.dest_region = Region::default();
+                });
+                main_dispatch.reduce_mut(|state| {
+                    state.selected_dest_plate = Uuid::from_u128(id);
+                    state.selected_transfer = Uuid::nil();
+                });
+            }
+        }
+    })
+}
+
+pub fn transfer_select_callback(main_state: Rc<MainState>) -> Callback<MouseEvent> {
+    Callback::from(move |e: MouseEvent| {
+        let target: Option<EventTarget> = e.target();
+        let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
+        if let Some(li) = li {
+            if let Ok(id) = li.id().as_str().parse::<u128>() {
+                let id = Uuid::from_u128(id);
+                if let Some(transfer) = main_state
+                    .transfers
+                    .iter()
+                    .find(|transfer| transfer.get_uuid() == id)
+                {
+                    main_dispatch.reduce_mut(|state| {
+                        state.selected_source_plate = transfer.source_id;
+                        state.selected_dest_plate = transfer.dest_id;
+                        state.selected_transfer = id;
+                    });
+                    ct_dispatch.reduce_mut(|state| {
+                        state.transfer = transfer.clone();
+                    });
+                }
+            }
+        }
+    })
+}
diff --git a/src/components/tree.rs b/src/components/tree.rs
index fbe7b8a..90359c5 100644
--- a/src/components/tree.rs
+++ b/src/components/tree.rs
@@ -2,12 +2,12 @@
 
 use uuid::Uuid;
 use wasm_bindgen::JsCast;
-use web_sys::{EventTarget, HtmlDialogElement, HtmlElement, HtmlInputElement};
+use web_sys::{HtmlDialogElement, HtmlInputElement};
 use yew::prelude::*;
 use yewdux::prelude::*;
 
 use crate::components::states::{CurrentTransfer, MainState};
-use crate::data::transfer_region::Region;
+use crate::components::callbacks::tree_callbacks;
 
 #[derive(PartialEq, Properties)]
 pub struct TreeProps {
@@ -22,102 +22,31 @@ pub fn Tree(props: &TreeProps) -> Html {
 
     let open_plate_info_callback = {
         let plate_menu_id = plate_modal_id.clone();
-        Callback::from(move |e: MouseEvent| {
-            let target: Option<EventTarget> = e.target();
-            let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
-            if let Some(li) = li {
-                if let Ok(id) = li.id().as_str().parse::<u128>() {
-                    plate_menu_id.set(Some(Uuid::from_u128(id)));
-                }
-            }
-        })
+        tree_callbacks::open_plate_info_callback(plate_menu_id)
     };
     let plate_info_close_callback = {
         let plate_menu_id = plate_modal_id.clone();
-        Callback::from(move |_| {
-            plate_menu_id.set(None);
-        })
+        tree_callbacks::plate_info_close_callback(plate_menu_id)
     };
     let plate_info_delete_callback = {
-        let dispatch = main_dispatch.clone();
+        let main_dispatch = main_dispatch.clone();
         let plate_menu_id = plate_modal_id.clone();
-        Callback::from(move |_| {
-            if let Some(id) = *plate_menu_id {
-                dispatch.reduce_mut(|state| {
-                    state.del_plate(id);
-                });
-            }
-        })
+        tree_callbacks::plate_info_delete_callback(main_dispatch, plate_menu_id)
     };
     let source_plate_select_callback = {
         let main_dispatch = main_dispatch.clone();
         let ct_dispatch = ct_dispatch.clone();
-
-        Callback::from(move |e: MouseEvent| {
-            let target: Option<EventTarget> = e.target();
-            let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
-            if let Some(li) = li {
-                if let Ok(id) = li.id().as_str().parse::<u128>() {
-                    ct_dispatch.reduce_mut(|state| {
-                        state.transfer.transfer_region.source_region = Region::default();
-                        state.transfer.transfer_region.dest_region = Region::default();
-                    });
-                    main_dispatch.reduce_mut(|state| {
-                        state.selected_source_plate = Uuid::from_u128(id);
-                        state.selected_transfer = Uuid::nil();
-                    });
-                }
-            }
-        })
+        tree_callbacks::source_plate_select_callback(main_dispatch, ct_dispatch)
     };
     let destination_plate_select_callback = {
         let main_dispatch = main_dispatch.clone();
         let ct_dispatch = ct_dispatch.clone();
-
-        Callback::from(move |e: MouseEvent| {
-            let target: Option<EventTarget> = e.target();
-            let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
-            if let Some(li) = li {
-                if let Ok(id) = li.id().as_str().parse::<u128>() {
-                    ct_dispatch.reduce_mut(|state| {
-                        state.transfer.transfer_region.source_region = Region::default();
-                        state.transfer.transfer_region.dest_region = Region::default();
-                    });
-                    main_dispatch.reduce_mut(|state| {
-                        state.selected_dest_plate = Uuid::from_u128(id);
-                        state.selected_transfer = Uuid::nil();
-                    });
-                }
-            }
-        })
+        tree_callbacks::destination_plate_select_callback(main_dispatch, ct_dispatch)
     };
 
     let transfer_select_callback = {
         let main_state = main_state.clone();
-
-        Callback::from(move |e: MouseEvent| {
-            let target: Option<EventTarget> = e.target();
-            let li = target.and_then(|t| t.dyn_into::<HtmlElement>().ok());
-            if let Some(li) = li {
-                if let Ok(id) = li.id().as_str().parse::<u128>() {
-                    let id = Uuid::from_u128(id);
-                    if let Some(transfer) = main_state
-                        .transfers
-                        .iter()
-                        .find(|transfer| transfer.get_uuid() == id)
-                    {
-                        main_dispatch.reduce_mut(|state| {
-                            state.selected_source_plate = transfer.source_id;
-                            state.selected_dest_plate = transfer.dest_id;
-                            state.selected_transfer = id;
-                        });
-                        ct_dispatch.reduce_mut(|state| {
-                            state.transfer = transfer.clone();
-                        });
-                    }
-                }
-            }
-        })
+        tree_callbacks::transfer_select_callback(main_state)
     };
 
     let source_plates = main_state