I've been searching for vertical editing sequential numbering, I've found: https://www.emeditor.com/text-editor-features/coding/multiple-selection-editing/how-to-use-vertical-editing/
On vertical selection, a menu option allows for sequential numbering to be inserted. This would be a welcome addition to Geany. It probably would be best/proper to add it to Scintilla but it could probably be added to Geany by cycling over the vertical selections or prior to paste.  -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/2317
