Complement energy level with availability

I travel for work, often Monday-Thursday, and within those four days I will have often worked up to 50 hours already. When I arrive home on Thursday I often want to do a 1-hour ride, but I don't have energy for over-unders or something horrible like that.

It would be super if we could add something like an (expected) energy level to an availability. Something like "Light maintenance", " Normal workout effort", or "Ready to give it all" perhaps.