How can I run multiple commands using one shortcut?
I'm gonna run dupfaceborder, offsetcrvonsrf, split, extrudesrf
by specified distances like 50 times, is it possible to convert them into one command?
I read about it and know it's possible using python, but I'm not able to do that so I need another easier way.
I think you are probably looking for macros. You can chain commands together and then attach to buttons. Check out the docs here: https://wiki.mcneel.com/rhino/macroscriptsetup