Unreal engine 4.25 don't have resize Landscape?

I have a problem with the terrain which became invisible when I run the simulation. To solve it I have to relaunch the landscape with a Resize but the option is not in the new menu.
help please


someone can help me please?

There is another Thread about that. As I understand, you have to change the Sourcecode and compile the Engine from scratch.
So sad, I need this function, too!