Fixes issue where Regenerate Bounds button for SceneGroup/SubScenes wasn't displaying by moving it to Editing inspector group

Added mode toggle for if changing the transform influences the child objects of a SubScene or not
Added onSelected/onUnselected callbacks for SimObjects to allow contextual behavior in the editor
Added functionality of programmatic/dynamic Tool Button Palettes
Added logic so when selecting SubScenes the world editor palette has new buttons for letting the move/rotate actions influence the child objects

Engine/source/T3D/SceneGroup.cpp

@@ -119,7 +119,7 @@ void SceneGroup::onInspect(GuiInspector* inspector)
    Parent::onInspect(inspector);
    
    //Put the SubScene group before everything that'd be SubScene-effecting, for orginazational purposes
-   GuiInspectorGroup* sceneGroupGrp = inspector->findExistentGroup(StringTable->insert("SceneGroup"));
+   GuiInspectorGroup* sceneGroupGrp = inspector->findExistentGroup(StringTable->insert("Editing"));
    if (!sceneGroupGrp)
       return;
 

Engine/source/T3D/SubScene.cpp

@@ -10,6 +10,8 @@
 #include "gui/editor/inspector/group.h"
 #include "T3D/gameBase/gameBase.h"
 
+bool SubScene::smTransformChildren = false;
+
 IMPLEMENT_CO_NETOBJECT_V1(SubScene);
 
 S32 SubScene::mUnloadTimeoutMs = 5000;
@@ -86,6 +88,10 @@ void SubScene::consoleInit()
 
    Con::addVariable("$SubScene::UnloadTimeoutMS", TypeBool, &SubScene::mUnloadTimeoutMs, "The amount of time in milliseconds it takes for a SubScene to be unloaded if it's inactive.\n"
       "@ingroup Editors\n");
+
+   Con::addVariable("$SubScene::transformChildren", TypeBool, &SubScene::smTransformChildren,
+      "@brief If true, then transform manipulations modify child objects. If false, only triggering bounds is manipulated\n\n"
+      "@ingroup Editors");
 }
 
 void SubScene::addObject(SimObject* object)
@@ -163,6 +169,30 @@ void SubScene::inspectPostApply()
    setMaskBits(-1);
 }
 
+void SubScene::setTransform(const MatrixF& mat)
+{
+   if(SubScene::smTransformChildren)
+   {
+      Parent::setTransform(mat);
+   }
+   else
+   {
+      SceneObject::setTransform(mat);
+   }
+}
+
+void SubScene::setRenderTransform(const MatrixF& mat)
+{
+   if (SubScene::smTransformChildren)
+   {
+      Parent::setRenderTransform(mat);
+   }
+   else
+   {
+      SceneObject::setRenderTransform(mat);
+   }
+}
+
 bool SubScene::evaluateCondition()
 {
    if (!mLoadIf.isEmpty())

Engine/source/T3D/SubScene.h

@@ -23,6 +23,9 @@ public:
 
    void onLevelChanged() {}
 
+protected:
+   static bool smTransformChildren;
+
 private:
    DECLARE_LEVELASSET(SubScene, Level, onLevelChanged);
 
@@ -47,6 +50,7 @@ private:
    U32 mCurrTick;
 
    bool mGlobalLayer;
+
 public:
    SubScene();
    virtual ~SubScene();
@@ -71,6 +75,9 @@ public:
    //void onEditorDisable() override;
    void inspectPostApply() override;
 
+   void setTransform(const MatrixF& mat) override;
+   void setRenderTransform(const MatrixF& mat) override;
+
    bool testBox(const Box3F& testBox);
    bool evaluateCondition();
    void _onSelected() override;