Toggle/reserve bot types in roboports

[FedeNoobDK]

I would like to be able to reserve spots in roboports for a single type (logistic/construction) of bot in any given roboport - comparable to the blue highlight in inventory with middle mouse click.

Bonus points for quick-select-all-toggle all slots in the roboport (this time think a toggle-slider-button akin to belt splitter input/output priority, or better yet, just icons for logistic/construction - it's easier for the user that way, though possibly a tiny bit more difficult to implement...)