Ideas that are too old (too many things have changed since) and ones which won't be implemented for certain reasons or if there are obviously better suggestions.
It would be a really nice QoL upgrade if there is an option for: If you start placing at a Ghost Blueprint and hold the left Mouse button,to just place in these spots,rather then placing in empty spots(like with the powerpoles)this would make building smelter collumns and such more Handy as u could just run along and also place inserters like power poles.
Or maybe even if u hold a certain Key to enable that.
I know it would be possible
Assuming with ghost blueprints you simply mean ghosts, this is not going to happen, the point blueprints is that you need construction bots to place them easily. You should look into mods for this.