I do V(motion):norm cityour new content<CR>, which does the same as your point 2, very often. But, as you said, multiple cursors is a lot like visual feedback

I do V(motion):norm cityour new content<CR>, which does the same as your point 2, very often. But, as you said, multiple cursors is a lot like visual feedback for macros. I miss such a "live" feel sometimes. You got me interested: I'm looking forward for your Vim plugin.