Tried to use egui::dock but ended up just using a manual egui

src/main.rs

@@ -1,9 +1,9 @@
 use bevy::prelude::*;
-use bevy_inspector_egui::quick::WorldInspectorPlugin;
+use bevy_inspector_egui::{DefaultInspectorConfigPlugin, bevy_egui::{self}};
 use bevy_rapier3d::prelude::*;
 use logic::core::{guns::player_firing::PlayerFiringInfo, player::player_values_state::PlayerValuesState};
 use scenes::scene1;
-use ui::game::plugin::MainGameUIPlugin;
+use ui::{game::plugin::MainGameUIPlugin, editor::plugin::MainEditorUiPlugin};
 
 mod comps;
 mod constants;
@@ -26,9 +26,12 @@ fn main() {
 fn setup_plugins(application: &mut App) {
     application
         .add_plugins(DefaultPlugins)
+        .add_plugins(DefaultInspectorConfigPlugin)
         .add_plugins(RapierPhysicsPlugin::<NoUserData>::default())
-        .add_plugins(WorldInspectorPlugin::new())
+        .add_plugins(bevy_egui::EguiPlugin)
+        //.add_plugins(WorldInspectorPlugin::new())
         .add_plugins(MainGameUIPlugin)
+        .add_plugins(MainEditorUiPlugin)
         .register_type::<PlayerFiringInfo>()
         .register_type::<PlayerValuesState>();
 }

src/ui/editor/mod.rs

@@ -1,2 +1,4 @@
 //! Editor UI means everything that won't be in the actual game
 pub mod plugin;
+pub mod panels;
+pub mod state;

src/ui/editor/panels.rs

@@ -0,0 +1,58 @@
+use bevy::{prelude::*, window::PrimaryWindow};
+use bevy_inspector_egui::{bevy_inspector::hierarchy::SelectedEntities, bevy_egui::EguiContext, egui};
+
+use crate::ui::game::settings::SettingsScreenUIConfiguration;
+
+pub fn editor_ui(
+    world: &mut World,
+    mut selected_entities: Local<SelectedEntities>,
+) {
+    if !world.resource::<SettingsScreenUIConfiguration>().settings_menu_shown {
+        return
+    }
+    let mut egui_context = world
+        .query_filtered::<&mut EguiContext, With<PrimaryWindow>>()
+        .single(world)
+        .clone();
+
+    egui::SidePanel::left("hierarchy")
+        .default_width(250.0)
+        .show(egui_context.get_mut(), |ui| {
+            egui::ScrollArea::vertical().show(ui, |ui| {
+                ui.heading("Components Hierarchy");
+
+                bevy_inspector_egui::bevy_inspector::hierarchy::hierarchy_ui(
+                    world,
+                    ui,
+                    &mut selected_entities,
+                );
+                
+                ui.separator();
+                
+                ui.heading("All Resources");
+                bevy_inspector_egui::bevy_inspector::ui_for_resources(world, ui);
+                ui.allocate_rect(ui.available_rect_before_wrap(), egui::Sense::hover());
+                ui.allocate_space(ui.available_size());
+            });
+        });
+
+    egui::SidePanel::right("inspector")
+        .default_width(250.0)
+        .show(egui_context.get_mut(), |ui| {
+            egui::ScrollArea::vertical().show(ui, |ui| {
+                ui.heading("Inspector");
+
+                match selected_entities.as_slice() {
+                    &[entity] => {
+                        bevy_inspector_egui::bevy_inspector::ui_for_entity(world, entity, ui);
+                    }
+                    entities => {
+                        bevy_inspector_egui::bevy_inspector::ui_for_entities_shared_components(
+                            world, entities, ui,
+                        );
+                    }
+                }
+                ui.allocate_space(ui.available_size());
+            });
+        });
+}

src/ui/editor/plugin.rs

@@ -1,10 +1,12 @@
 use bevy::prelude::*;
 
-pub struct MainEditorUIPlugin;
+use super::{panels::editor_ui, state::EditorUiState};
 
-#[allow(unused)]
-impl Plugin for MainEditorUIPlugin {
+pub struct MainEditorUiPlugin;
+
+impl Plugin for MainEditorUiPlugin {
     fn build(&self, app: &mut App) {
-        todo!()
+        app.insert_resource(EditorUiState::new());
+        app.add_systems(Update, editor_ui);
     }
 }

src/ui/editor/state.rs

@@ -0,0 +1,15 @@
+use bevy::prelude::*;
+use bevy_inspector_egui::egui;
+
+#[derive(Resource)]
+pub struct EditorUiState {
+    pub viewport_rect: egui::Rect,
+}
+
+impl EditorUiState {
+    pub fn new() -> Self {
+        Self {
+            viewport_rect: egui::Rect::NOTHING,
+        }
+    }
+}