- Add IPS_Editor_ChildMovable interface for per-child editing of sub-elements
(VR placement spots, etc.) with full gizmo, undo, and serialization support
- Add "Edit Children" button in toolbar when a ChildMovable actor is selected
- Add bPreload tag on SpawnableComponent for briefing/placement phase actors
- Add EPS_Editor_SceneLoadFilter enum (All, PreloadOnly, ExcludePreload) to
LoadScene for selective loading of preload vs gameplay actors
- Add bPreload field to FPS_Editor_ActorData for JSON persistence
- Add static IsInEditorMode() getter on SceneLoader (BlueprintPure)
- Add Level::InitializeRenderingResources() call on sublevel load for lightmaps
- Update Pawn, PlayerController, UndoManager, SceneSerializer, SceneLoader,
MainWidget to support ChildMovable alongside existing SplineEditable
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
j.foucher
1a2cc87160