wonderful. many thanks andrea!! to my question: If I have two chains in a structure how can i draw a surface on each
chain separately (as though the other chain did not exist). currently i have to separate the structure file into two different files with a chain each and read them both and draw teh surface on each.
andrea replied: Hi I think you should select the chain A and then create the object for this selection. Then you can manipulate as standalone object. select A, chain A create A_obj, A show A_obj,surface I hope this help Regards andrea
