How to Turn All Players Into Props

This will turn all players into a prop when the game is played. eg, making everyone astronauts for a space game

Place a prop you want players to turn into. Select it and open the code builder.

This only works with the in builder props, and not custom models that you make

Place an at start block from Events, followed by a for each player in plot do block from Players.
From the Props section, put a morph player into prop block in between the player blocks.
Press play and see everyone change into your chosen prop and play around!