diff -r a72d7509d292 -r 25b2da0aac15 application/main.c
--- a/application/main.c	Mon Sep 29 21:34:43 2025 +0200
+++ b/application/main.c	Wed Oct 01 14:20:10 2025 +0200
@@ -585,7 +585,7 @@
     
     
     
-    UiObject *obj = ui_sidebar_window("Test", NULL);
+    UiObject *obj = ui_splitview_window("Test", TRUE);
     
     MyDocument *doc = create_doc();
     ui_attach_document(obj->ctx, doc);
@@ -597,6 +597,10 @@
                 .onactivate = action_sourcelist_activate);
     }
     
+    ui_right_panel(obj, .margin = 10, .spacing = 10) {
+        ui_button(obj, .label = "Test");
+    }
+    
     ui_tabview(obj, .spacing=10, .margin=10, .tabview = UI_TABVIEW_NAVIGATION_SIDE, .varname="tabview", .fill = TRUE) {
         ui_tab(obj, "Tab 0") {
             ui_vbox(obj, .fill = FALSE, .margin = 15, .spacing = 15) {