Mass Change of priority

Allow to Change the priority for buildings en Mass, e.g. using a drag tool to Mark all desired buildings.
The priorities to Change include General priority (worker,ls, electrociry,...), production priority (e.g. Generators), buildings priority, import priority and Export priority.
Currently those prioritites have to be Set each by each for each single buildings, a very tedious work

1000% this. I've got 650 hours in this game and would love to see this added!

also need to increase/decrease each by one

This is my proposal => https://ideas.captain-of-industry.com/suggestions/702275/subdividing-priorities