If it isn't a feature already, what about a way to set each life restoring a certain amount, for example, Life 1 gives you back 75%, Life 2 gives you back 50%, Life 3 gives you 25%, etc.

Reaper: I like this idea a lot. But it's hard to implement because I won't know how many lives each player will have so I can't put it in the menu. If I make it there's a text box in the menu for each life, what if someone has 30 lives. That would be pretty weird. Maybe I can make it so it's proportional to the number of lives? For example if you have 3 lives max, you lose one life and it goes to 75, lose another and it goes to 50, then 25, then after that you die? Like this? Or did you mean it does the other way? You lose one it goes to 25, 50, then 75.

I meant alongside being able to choose how many lives they have, people can choose how much each life restores

Yes and like I said above, the only problem with this is I won't know how many lives each person who uses this mod has. So I can't make a menu that lists each life and how much health should be restored for that life because the number of lives will change. I can only do a function that scales the health restored with something else. Like the total number of lives like I explained above.