how to delete mesh drawing in ADS layout

Hello there:
I run into a problem and dont know how to get rid of it. I copied a piece of patch with mesh drawing on it to another layout design. then, I deleted that copied patch in the latter layout design. but the mesh persisted and I can not get rid of it.

Did anyone here also encounter that problem? how to deal with?




Thanks In Advance

Julian

Momentum-->Mesh-->Clear