Is it possible for a "no-blockplacing" zone?

You can use zones to deactivate/activate the barriers with channels when the players enter them/exit them.

1 Like

Make sure you keep collision ON. If a player is spawn inside of a collision on barrier, they can still move around inside but cannot place blocks. If you stretch a barrier like this all across the map then they can’t place blocks:

1 Like

The only downside is that the movement inside of the barrier is a tiny bit wonky.