new asset: Marker with custom title (category: "Basic")
Selection changes can now be Undo (Ctrl+Z) and Redo (Ctrl+Y)
bug fix: selection at the level stops working if you change the tool to a regular selection while the other tool's manipulator is highlighted
bug fix: rocket launcher kill does not count in Area of enemy destruction
Destructible objects now retain modified materials when destroyed
bug fix: compilation error if Resettable Group is inside an empty parent
bug fix: with an increasing ForceField if you uncheck the checkbox
"Platform on stick" rework
added the destructible version
the stick has been moved to a separate object for flexible customization