Shrink+Join+Expand Script Question

 From:  Bravlin
9250.6 
Its good that we have this option for a script automation.
But this mean that for each tool we need to reserve its own button for "bounding box center" option.
I guess it may be easier if we just press RMB after move tool invocation to activate bounding box center.
This way we do not need additional shortcuts.
If it possible of course.