cursorcolumn like vi/vim

edit

Thank you. Is it possible to display a solid line ?

Not one that follows the caret. You can only do that for current line, not column. Current line highlight is set up with the Editor > Selection/Caret > Caret Line Highlight preference.

A related thing that might help is the Editor > Indentation > Show Indent Guides preference. That shows vertical lines indicating indent levels.

Thank you. I got it.