Maybe you're looking for visual block mode?[0] Or the multi-cursor plugin[1]? I haven't tried the latter, ut I really like visual block mode for certain things.

It's amazing how much new stuff I learn about vim every day... And I'm nowhere near done :)

[0]https://stackoverflow.com/questions/21806168/vim-use-ctrl-q-... [1]https://github.com/terryma/vim-multiple-cursors