Visual Studio 2019/2022 text editor supports vertical selection using Alt+mouse_drag but I cant seem to figure out if BeyondCompare supports this in its editor or not.
Need to edit a bunch of lines to fix indentation
Beyond Compare doesn't support vertical selection. It's on the feature request list for a future version but doesn't have a scheduled release date.
Search and replace is a possible workaround.
Example: To change two spaces of leading indentation to four spaces.
^
(carat followed by two spaces).
(four spaces).Beyond Compare also provides commands to convert whitespace: