Question: paint tool with maxscript?

Hi Everyone,

I am newbie here have a favor to ask. I want to able to deform splines with the kind of brush/paint tool just like how the shift tool works for polymesh object. Had the shift tool worked for spline as well, it would be very helpful. unfortunately this is not the case. So i would like to ask anyone here, if anyone here have a clue the way to modify the Shift tool code using maxscript to work with spline? or in case it impossible to modify Shift tool with maxscript then maybe anyone can give an example of code to create a tool that has similar function with Shift tool with maxscript language from scratch.Any reply would be very much appreciated.