How to use terrain features without having terrain button?

Hello everyone,

I am missing the terrain button as many have, I can add the terrain but I can’t use the features like flattening and creating mountains and so.
So how this works in the new version, please? I would really appreciate the help.

Thanks.

In the top right corner of the Inspector next to the little lock is an icon that allows you to switch between Normal and Debug. Turns out mine was set to Debug. Switching to Normal brought the tools back. @A_H_Amin