[Feature Request] Save point option for Checkpoint function

Add save points via Checkpoint functions so players can start a dungeon at the last checkpoint reached.

We do not require any progress to be stored. An entirely new dungeon is no problem for us.

We have an Escape Dungeon in which players go through room by room. After each room, we have a checkpoint. If the player runs out of steam and wants to continue another time, the player has to redo all their progress. It would be great if the player could start at the last checkpoint of a previous game. Currently, players ask us to teleport them to the room they left.

Once a player completes the Dungeon, their save point must be cleared.