The DIY Map Editor has been reactivated in the beta branch of the game.

To access this right click Skater XL in your Steam game library then click Properties -> Betas -> Beta Participation -> 'beta - Open Beta'.

To use the DIY Map Editor from within gameplay, push and hold Y / △ for half a second.

Note that the new Tampa Pro 2024 map contains some additional objects which can be used in the DIY Map Editor, and a few props in the map are also movable.