Sounds like a company specific thing. Never seen that before. Or maybe it's called something different on the mcp200 I've used Which system is this on? I could see it being perhaps "Expected Days Off" or something. That's a guess though, it very well could also be "Explosive Diarrhea Otter"
Then it's likely a company specific thing. For me, time off is a form that has "last day at work" "total days requested" and "next available date" fields to put in