diff --git a/src/rvlib/menu/main.rs b/src/rvlib/menu/main.rs
index d3fe2964..e8904d51 100644
--- a/src/rvlib/menu/main.rs
+++ b/src/rvlib/menu/main.rs
@@ -98,12 +98,16 @@ macro_rules! handle_error {
 pub struct ToolSelectMenu {
     are_tools_active: bool, // can deactivate all tools, overrides activated_tool
     recently_activated_tool: Option<usize>,
+    label_propagation_buffer: String,
+    label_deletion_buffer: String,
 }
 impl ToolSelectMenu {
     fn new() -> Self {
         Self {
             are_tools_active: true,
             recently_activated_tool: None,
+            label_propagation_buffer: "".to_string(),
+            label_deletion_buffer: "".to_string(),
         }
     }
     pub fn recently_clicked_tool(&self) -> Option<usize> {
@@ -125,9 +129,14 @@ impl ToolSelectMenu {
         });
         for v in tools_menu_map.values_mut().filter(|v| v.menu_active) {
             let tmp = match &mut v.specifics {
-                ToolSpecifics::Bbox(x) => {
-                    bbox_menu(ui, v.menu_active, mem::take(x), &mut self.are_tools_active)
-                }
+                ToolSpecifics::Bbox(x) => bbox_menu(
+                    ui,
+                    v.menu_active,
+                    mem::take(x),
+                    &mut self.label_propagation_buffer,
+                    &mut self.label_deletion_buffer,
+                    &mut self.are_tools_active,
+                ),
                 ToolSpecifics::Brush(x) => {
                     brush_menu(ui, v.menu_active, mem::take(x), &mut self.are_tools_active)
                 }
diff --git a/src/rvlib/menu/tools_menus.rs b/src/rvlib/menu/tools_menus.rs
index deab0de6..304b1b1d 100644
--- a/src/rvlib/menu/tools_menus.rs
+++ b/src/rvlib/menu/tools_menus.rs
@@ -194,10 +194,27 @@ fn toggle_erase(ui: &mut Ui, mut options: CoreOptions) -> CoreOptions {
     }
     options
 }
+fn triggerable_number(
+    ui: &mut Ui,
+    buffer: &mut String,
+    are_tools_active: &mut bool,
+    input: &mut Option<usize>,
+    name: &str,
+) {
+    ui.horizontal(|ui| {
+        text_edit_singleline(ui, buffer, are_tools_active);
+
+        if ui.button(name).clicked() {
+            *input = buffer.parse::<usize>().ok();
+        }
+    });
+}
 pub fn bbox_menu(
     ui: &mut Ui,
     mut window_open: bool,
     mut data: BboxSpecificData,
+    label_propagation_buffer: &mut String,
+    label_deletion_buffer: &mut String,
     are_tools_active: &mut bool,
 ) -> RvResult<ToolsData> {
     let LabelMenuResult {
@@ -224,6 +241,20 @@ pub fn bbox_menu(
 
     let mut export_file_menu_result = Ok(());
     egui::CollapsingHeader::new("advanced").show(ui, |ui| {
+        triggerable_number(
+            ui,
+            label_propagation_buffer,
+            are_tools_active,
+            &mut data.options.core_options.label_propagation,
+            "label propagation",
+        );
+        triggerable_number(
+            ui,
+            label_deletion_buffer,
+            are_tools_active,
+            &mut data.options.core_options.label_deletion,
+            "label deletion",
+        );
         ui.checkbox(
             &mut data.options.core_options.track_changes,
             "track changes",
diff --git a/src/rvlib/tools/bbox/core.rs b/src/rvlib/tools/bbox/core.rs
index 0aa4aae3..e77edc0a 100644
--- a/src/rvlib/tools/bbox/core.rs
+++ b/src/rvlib/tools/bbox/core.rs
@@ -121,6 +121,14 @@ fn check_cocoexport(mut world: World) -> World {
     world
 }
 
+fn check_propagate_or_delete(mut world: World) -> World {
+    let options = get_options_mut(&mut world);
+    if let Some(n_prop) = options.and_then(|o| o.core_options.label_propagation) {}
+    let options = get_options_mut(&mut world);
+    if let Some(n_del) = options.and_then(|o| o.core_options.label_deletion) {}
+    world
+}
+
 fn check_cocoimport(mut world: World) -> World {
     // import coco if demanded
     let options = get_options(&world);
diff --git a/src/rvlib/tools_data/core.rs b/src/rvlib/tools_data/core.rs
index 0055b061..6ecc0698 100644
--- a/src/rvlib/tools_data/core.rs
+++ b/src/rvlib/tools_data/core.rs
@@ -32,6 +32,8 @@ pub struct Options {
     pub is_history_update_triggered: bool,
     pub track_changes: bool,
     pub erase: bool,
+    pub label_propagation: Option<usize>,
+    pub label_deletion: Option<usize>,
 }
 impl Default for Options {
     fn default() -> Self {
@@ -43,6 +45,8 @@ impl Default for Options {
             is_history_update_triggered: false,
             track_changes: false,
             erase: false,
+            label_propagation: None,
+            label_deletion: None,
         }
     }
 }