[REQ] Stats change script

Anybody know or can write script for changing stats in playerboard/leaderboard? this thing btw https://gyazo.com/8e0c50370d7c56da1b938e53d759d69c
i got an example of script that work but i want to know that is it possible to make it save? because everytime i rejoin it will reset to my old value
here an example of script game.Players.LocalPlayer.leaderstats["Commends"].Value = 100
if someone know how to make it save please tell me.