I've seen references to "merge layers". Is that an actual command? I can't seem to find it. I guess they just mean conceptually, by cutting and pasting points. If there is a specific command to do that I'd appreciate a pointer to how to do it. Sorry if I'm missing the obvious Thanks
I was looking for something similar and I found this script by Ramon Lopez: Copy Paste Vector Script
(You may have to comment out a section of code that throws a nil error. Removing one of the hyphens on line 102 did the trick for me.)