Would it be possible to get .setCollider and .debug for Unit 3, Lesson 20, the Side-Scroller project? My students are really wanting to use it to perfect the collision zones of their sprintes.
There are two ways they could make use of those blocks.
They could switch to text mode and type the command. When they switch back to blocks, that block would still be there.
They could remix the project and get access to all blocks.
Hopefully one of these will work for you and your students!