I am using PyMOL 1.7 open source version in Ubuntu 14.04.
I wanted to try a new setting pdb_conect_nodup in pymol 1.7.
It is listed as new features available for both "Open Source and Incentive" at:http://pymol.org/features#v1.7
when I set it to on, I got:
"Setting-Warning: not supported in open-source version of PyMOL"