Storage maids should have a max use slider.  Instead of on or off, allow us to set them to 1, 2, 3, 4, ..., or all at a time.  Say I want to move 2,000 of an item that weighs 0.3 I use up 7 maids, the first 6 maids get fully used for 1998, the 7th maid only moves 0.6 weight of her max 100 weight.

If we had the ability to right click Max amount enter for speed while grinding but the max amount is limited to 5 maids at a time, I wouldn't have to think, okay I need to type out 1665.

I am not sure this makes sense.