Option to move cursor in spaces as if they were tabs

Please add a feature so that the editor works identically even if the user chooses to emit spaces instead of tabs. Ie, pushing arrow right in a set of spaces would skip ahead to the next tab-stop.

Would probably make sense to add some kind of mechanics to toggle between the two if you, for whatever reason, want to reach a space in the middle of a bunch of spaces.

Please please add this. I've been changing editor like a million times mainly because of the consistent lack of said feature. If no one else cares to implement it, I will one day I will buckle down and write my editor :)

Thank you
Pelle