UMultiButtonClickDragBehavior

MultiButtonClickDragBehavior is an implementation of [UClickDragInputBehavior](API\Runtime\InteractiveToolsFramework\UClickDragInputBehavior) that can manage several mouse buttons at once and also implements [IClickDragBehaviorTarget](API\Runtime\InteractiveToolsFramework\IClickDragBehaviorTarget) directly, via a set of local lambda functions.