Need Help!

How the heck do you morph? I tried the down thing, but I think someone said it had a toggle button. What is the toggle button? I’m talking about the new demo. The last one had the morph ball, but I can’t figure it out this time. And I didn’t see anyone asking this. Can someone help me? Is this even in the right section.

if you are talking about the newist demo version thing you gotta find it first