TL;DRAllow player, if idling, to delete ghost entities and place ghost entities in reach.
What ?The new cut/copy/paste feature is ABSOLUTELY WONDERFUL. There is just one small problem - it's available from the very beginning of the game, and indeed has uses from early on (when you start to lay a steam engine or electric mining setup), but can't actually be used practically until you have robots to act on the commands to delete/place entities.
My proposal is to allow the player to do this automatically for ghosts within reach if he is not moving. (You could also restrict to "not currently moving or hand-crafting") So if I cut something and paste it nearby, the player will automatically pick up the entities I cut out and put them at the new location. Of course, you have to have room in your inventory to pick up, and the required items in your inventory to put down. If the player moves, then the action is interrupted.
Could be implemented as a game setting if people don't want their player to do this - in particular, once they have robots they may want the robots to handle everything.