I can’t figure it out
I don’t know if there is simpler way, but I am using a workaround. Create the bullet point anywhere and then move it to the block under which it should be indented.
If you drag the bullet point to the intended parent, it will indent.
I just tried it and realized it can be confusing because it only shows an orange line (up or below) indicating order. There’s no orange selection indicating that you can move it to that block.
Thanks this worked!