Making a tool palette

[Marty Knapp]

I want to make a tool palette very similar to the LC tool palette, that 
I can drag a button off of and have it create on a stack. So I copied 
revtools.rev to the desktop and changed its name there and tried to open 
it, but of course LC wants to know what to do with the existing tool 
palette. I did try closing that before opening my copy but got the same 
message. I want to take a peek at the scripting to learn how to make my 
own - what should I do, or does someone have another idea for me?

Thank you for any responses,
Marty Knapp