There's a scripting section in the manual which goes into detail, but we can help write them as well (time permitting, and as long as it's something simple). However, scripts (outside of Rename Scripts) only work in the Pro version, so if you're thinking about getting the Light version then that method wouldn't work.
You might be able to do something similar with non-script commands, though. If you end up getting Light, let us know and we can try and work that out. (I was mainly planning on using scripts because I already have a similar one I could probably adapt, but I might be able to work out a way to do what you want without a script, thinking about it.)