diff --git a/src/view/pages/signal_reducing.rs b/src/view/pages/signal_reducing.rs
index b504abf..a509807 100644
--- a/src/view/pages/signal_reducing.rs
+++ b/src/view/pages/signal_reducing.rs
@@ -14,8 +14,14 @@ use crate::{
     view_utils::signal_reduce_input_utils::{get_error_message, parse_fields},
 };
 
+use glib::clone;
+
+extern crate gio;
+
+use gio::ListStore;
+
 use gtk::{
-    prelude::{BoxExt, ButtonExt, Cast, CastNone, GridExt, ListItemExt, ListModelExt},
+    prelude::{BoxExt, ButtonExt, Cast, CastNone, GridExt, ListItemExt, ListModelExt, SorterExt},
     Align, WrapMode, *,
 };
 use gtk4 as gtk;