I always try to be organised on here and one problem I ran into is trying to plan litters, I don't have a good king so I always breed to studs and territory space is a thing so it's hard to pick out which girls I'm going to breed when I don't know when they come into heat. It'd be nice if a tab got labeled "In Heat In:" and then the number of days until they're in heat under it. Maybe when they come into heat it could change to "In Heat For:" too
Here's an example:

(It wouldn't replace age, it's just an example of how it'd look but it'd be in a different spot)

Three of my girls are in heat and I want to breed two of them but I don't know when my other girls are coming into heat without having to go through all my lions while writing all the cooldowns down and I'd have to change it every day since I don't want to spend a large amount of SB just to not have enough space for all the cubs so that's why I thought to suggest this.