Get player character>Set variable>Save Variable
When Loading you’ll do the opposite
Load Variable>Apply all Variables to character
as far as im aware without going to the effort of doing this myself you may as well just get all the variables you want to save in the first place instead of the whole character
Usually
Inventory
Transform
and anything else that’s actually important
If your question is actually how to make a save then here’s a great tutorial on just that
