Hai,
Is there any way to Isolate face, or part of geometry while modeling like in maya & max..???

You can select the faces that you want to be hidden and then press your delete key on the keyboard. This will add a blast node to your graph which hides your selected poly's.
Most likely there are other ways….

Regards, Robert

Another option would be to select the elements you'd like to isolate, then choose “Show Only Selected Primitives” from the toolbar. This adds a visibility node to your network, which you can delete later.

Nice, That's what i was looking…Thanks.