I am using PyMOL for creating molecular surfaces (SAS), starting form a pdb file. I have some problems with "large" proteins like the head of a protein kinase, because the program creates some internal surfaces, disconnected from the larger one. I have found the ConnecetdCloud tool and I would use it for selecting all the connected surface atoms taking part to the calculus of the surface. I don't know if it is a good way. Anyway, I tried to do this and the program returned an invalid syntax error while specifing the origSel (I tried both with atom name and aminoacid...). Can anyone help me?