Unreal engine 4.25 don't have resize Landscape?

hi,
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

https://forums.unrealengine.com/core/image/png;base64

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!

https://forums.unrealengine.com/deveā€¦nent-size-tool