Ivan,
I would advise you to contact CNS guys instead of CCP4 bb in this case. Although I know that many could tell you how to do it, its not a great idea to use ccp4bb to ask question about other programs, when they have relevant bulletin boards/user groups.
don't really want to be looking like a "self appointed police" but can't resist, sorry.
Although it's a good idea to use proper bb for specific questions, I still belive that CCP4bb is a great channel for broader range of general crystallographic questions and discussions. We got a volume of "wet-lab" related questions about crystallization and the like (which has nothing to do with CCP4 collection of programs), various general crystallography questions and even some math related queries to crystallography.
This "issue" was broad up many times before and I hoped this was put in rest by some very nice and generous comments made by Eleanor and other "fathers and mothers" of CCP4.
Therefore I don't think it is great to shut someone up and send to ask questions elsewhere (unless they are completely irrelevant like offers of steel rebars from China). Instead, your constructive answer to that specific question would be much more appreciated by Murugan and may be some others who may learn from it.
All the best! Pavel.
