I'm in the very early stages of trying to learn python. Of course, I’m most interested in using Python to script FontLab. However, I find the documentation on how Python works with the Fontlab methods to be extremely sparse. I’m familiar with this http://www.e-font.de/flpydoc/ but that doesn't make much sense to me right now. I've also worked with Robofab a little. I’m sure it will click as I learn more about Python but right now I’m not much further than learning about strings, lists, and loops.

Anyway… I keep hitting a dead end on something that I’m sure is pretty simple…
I frequently save my progress as I’m designing by copying my outlines to the mask layer and shifting the entire mask layer to the left (-1200 units at 2048 UPM). I have an Action Set saved for this that works by shifting outline & mask -1200 then shifting just the outline back 1200. I would like to do this with just a keyboard shortcut so I explored ways of making it happen with a Python script but I could never find a way to act on the mask layer in either the built-in FontLab methods or Robofab.

Any help on this would be greatly appreciated.

Thanks!
Josh