Editor not showing a level

So i created a World, added a level to it, went to editor mode and its just all white. I worked with a video tutorial, did everything like he did, but he had a map when he went to editor mode, i didnt.

can someone help?

Did you select your terrain in the layout mode before switching to editor mode?

Click the colored quader and afterwards change to editor mode.

Yea… now i can only see black :smiley: