Have you tried Ctrl-H (find and replace)? I think you can _Find_ _$_ and _Replace_ _,_[space]
The question mark at the end of the Find window pops open with the code for the end of line. I would save the file first, then select the lines you want to combine, use Ctrl-H, and make sure to add a white space after the comma if you want some separation between your numbers. -- <https://forum.pspad.com/read.php?2,73054,73307> PSPad freeware editor https://www.pspad.com
