Is there no function of copy supermesh like Classic version ?

Hello.
I just installed the Feflow 6.1.1.(Switched from 6.0 to 6.1)
When I was making supermesh, I found that there's no button "Switch to Feflow Classic" which existed in 6.0.

I used Feflow Classic because of the function of copy supermesh.
Is there no function of copy supermesh?
I hope to use that function.

Thank you in advance.

Indeed the 'Copy Supermesh Element' functionality is one of the very few functions that have not (at least not yet) been rebuilt in the new user interface. I would recommend to either prepare the polygons in a GIS system, using the copy functionality there, or - if you really need the functionality in FEFLOW for your specific application - to install FEFLOW 6.0 in parallel. You can create a smh file in FEFLOW 6.0 Classic and bring it into 6.1 for mesh generation.