Add the ability to keep track of consumable inventory items.
E.G. Water: Set the number of uses a single waterskin can store (like an ammo track).
Bonus feature: Deduct ‘uses’ each time a character short/long rests. Same for iron rations on a long rest. Allow GM to set the number of ‘uses’ used per rest period, depending on local conditions (More water in hot climates, More food in cold climates). A Pop-up warning when a character is out of water or food (So that the GM can start adding levels of exhaustion).
Extra Bonus feature: Some means of recording how much rope has been cut off a full 50′ length for various uses.