When going to the scheduling page, and clicking on the 'set maintenance' button for a particular plane, you get a popup box. Once that box pops-up, there's no way to mouseover the schedule anymore. It would be much more convenient if that pop-up box had the single plane's schedule in there, so you could quickly see when the maintenance needed to start by mousing over it. Instead of the current method of needing to mouse-over, remember the exact time, then open the box and type it in. (Or in my case, open the box, mutter an expletive, close the box, remember the time, open the box, accidentally set the wrong day, get an error message, open the box again, type in the right time.