Save and reload GameObject position on key input

HI all !!
I’m making a game where the player can move around many gameobject in the scene.I want to be able to save all the gameobject position by pressing F5 and reload it when i want by pressing F6.
This is my first game with unity so i’m a little bit lost and i didn’t found any real solution for me on this forum.Please need Help.Thks!!

I have the same problem. Any answer ?