Add a "nudge mode" to enable precise positioning of large blueprints.

This: https://youtu.be/ZDN_b6TX5gg?t=276
This will be a massive help for placing down large blueprints in places where they fit but just barely. Only now did I realise that such a feature would be very helpful in COI too when I tried to place down a large blueprint in a zone where it barely fits, but I couldn't see the edges because the BP is so large.
It will also reduce the imprecision caused by the massive lag when a complex blueprint is being held up, which doesn't help with placement either.

Yes, please

A kinda related feature suggestion: Something like the picker dollies mod in factorio, where you can nudge a single building (in CoI's case it'd only be for blueprinted buildings) precisely. I find myself quite often realizing I left one space too little between buildings.