Thank you for confirming feef. Thank you Jan. It's not so important for me, that's why I wrote in my initial post that it's rather not a feature request. However if already two people here would have a use for it you could at least think about to implement it :-)
Thanks again Steffen -- <https://forum.pspad.com/read.php?2,70460,70488> PSPad freeware editor https://www.pspad.com