A couple of commands / directives that can be added to a Work Plan might be nifty. I can think of Recharge, Pause, and Repeat Prior Item.
“Pause” (same as hitting the Pause button) would let me hack a Gate Mode and a poor Go to Waypoint (“Send”, “Summon”), which would be Stubby Deadend + Pause. 
Pause should have a notification with it (“Yarbo paused and is at ThisMappedItem”).
Why Repeat Prior Item? I thought of Target Height. If I can put AreaWithTallGrass into a Work Plan, I can set Target Height, add Repeat, add another Repeat, and I’ve got the grass knocked down. My Dog Pen has that Grass From Outer Space - #YarboMPro! LOL! The snowblower already lets you do a repeat with different auger heights – same thing. If you permit the same Mapped Item added to a single Work Plan multiple times, that would achieve the same effect.
Others probably have additional suggestions.