Date: Mon Jul 31 2017 - 07:32:56 CDT

I am trying to create a graphene oxide sheet, for that i have generated a
graphene sheet using Nanotube builder plugin in vmd and trying to edit
that sheet to add the functional groups,for that I tried to use vmd
molefacture plugin but my sheet is too big for that, i even tried to use
AVOGADRO but even it is hanging for large sheets, so can you suggest any
open source or free molecule editor or any other method that can handle
large number of molecules easily.

Best regards
Shivam Tiwari