The concept of a `column` is too specific to a particular filetype, or file, or even section of a file (comma separated, whitespace separated, code point ranges, glyph ranges) for this to be provided in core.
But somebody could implement it as a `column operations` plugin perhaps. --- Reply to this email directly or view it on GitHub: https://github.com/geany/geany/issues/806#issuecomment-164205109
