The only way to toggle the drag mode is with the following:
-_Options O B S EnterEnd
It’s a little clunky and ignores NoEcho. There’s already a command for everything but the drag mode: _Gumball toggle, _GumballAlignment, _GumballRelocate, _GumballScaleMode, _GumballReset, and _GumballAutoReset.
It’d be nice if there was a:
_GumballDragMode _Snappy _Smooth _Toggle