When these methods are appropriate, API says they are used when there are bigger changes, how to distinguish the boundaries of bigger changes, such as I perform adding background to each layer of all selected glyphs, or decompose all layers components of all selected glyphs, Need not use its?
If I only perform simple operations, can I also use them? Will it affect the efficiency of execution?
It is what the user will regard as one step. It summarizes all the tiny things that are undone with a single Cmd-Z.
The undo methods are not that important any more. That was more needed on some point.
The Changes methods can speed up the script quite a bit. When you do several things to a layer, put that between the
I’ll update the snippets.