Hi Tom, yes it's possible to create a customized version of the Revolve command that works like you are asking about.

The regular revolve command is controlled by the file Revolve.js in the commands folder. If you make a copy of that file and edit it to just make it set your desired values rather than the way it regularly works by getting the values from UI controls then that would do what you want.

I have attached a version where I've done that - see this FAQ answer for how to install it:
http://moi3d.com/FAQ#Q:_How_do_I_install_a_plug-in_script.3F

This version expects for you to preselect the curve before you run the command, and so the command has no UI of its own and so only has a .js file and no .htm file in it.

- Michael