[ccp4bb] Positive densities map on selective residues on Coot or Pymol

[Xiao Lei]

Dear All,

In Coot, I could adjust the densities of map (2Fo-Fc in my case) radius,
but I'd like to show the density on selective residues, not on the
unselected part of structure, is there a way to do it? I am using WinCoot
0.81.

In addition, could Pymol do it?

Thanks ahead!