Autodesk Maya Legacy ViewCube in Autodesk Maya 2020

View Cube in Autodesk Maya 2020

Open Notepad

Type 

MAYA_ENABLE_LEGACY_VIEWPORT=1

save 

File Name : Maya.env

Close Maya 2020 if opened

Copy Maya.env and paste into C:\Users\ShriYantra\Documents\maya\2020

Now open Maya 2020

go to  Renderer>Legacy Default Viewport

now you see view cube in upper right side in Maya 2020

Thank you.