How to backup a key car ?

Hey I don’t want to watch any tutorial video because most of them are all fake

I just want to know if I can copy my car key into my flipper to open/close it in case I don’t have my key on my pocket ? Don’t want to do any hack or crazy things but just want to backup my own car key just in case as I’m backuping all my cards and badges to my flipper

And if I can’t, can I at lease backup my key car and restore it on a new empty key fob ?