Commands I miss
I like the possibility of putting units on "sentry", i.e. that they are skipped during E-R'ing through the forces. However, I'd like the possibility of setting a unit to be skipped for this turn only, i.e. that it will be included in next turn's E-R'ing (much like using the spacebar on units in some other games). This especially because if you unselect a unit (e.g. to have a look at messages), the E-R'ing starts from the same "first" unit again.
I'd also like to see a "sentry-till-healed"-command, i.e. a command that will make a unit act like it has been "sentried" till it has recovered full cohesion. Perhaps also have a command for waiting till it has recovered full strength and another one for both full strength and full cohesion, if one really wants to provide options

Shortcut keys I miss (in my subjectively prioritized order)
- One for "Use rail" (could have one for "Use river transport" too, but I myself use that much less, so the need is less)
- One for "Delete all movement orders"
- One for combining/splitting divisions