saveFrame location options processing

Hey GotoLoop,

I can’t seem to figure it out? sorry if I’m asking dumb questions here but could you elaborate a bit on this? so far from the reference I tried

pimg.save(filename)

but it doesn’t recognise it or am I able to put in coordinates.

here’s a screenshot of a save, I want it to only save the right part of the frame. how would I go about and do this?