[PyMOL] Query on 'Select group for analysis' for Contact Map Visualizer Plugin

[Suhaila H. M. H. <bel...@ho...>]

Hello especially for those who are experienced using Contact Map Visualizer Plugin. About generating a contact map, after typing the following command as shown:
 
g_mdmat -f 2p31.pdb -s 2p31.pdb -mean contact-map.xpm

It gives us a list of group selection to analyze such as below: Select group for analysis
 Group     0 (         System) has  2616 elements
 Group     1 (        Protein) has  2470 elements
 Group     2 (      Protein-H) has  2470 elements
 Group     3 (        C-alpha) has   314 elements
 Group     4 (       Backbone) has   934 elements
 Group     5 (      MainChain) has  1246 elements
 Group     6 (   MainChain+Cb) has  1540 elements
 Group     7 (    MainChain+H) has  1246 elements
 Group     8 (      SideChain) has  1224 elements
 Group     9 (    SideChain-H) has  1224 elements
 Group    10 (    Prot-Masses) has  2470 elements
 Group    11 (    non-Protein) has   146 elements
 Group    12 (            Ion) has     2 elements
 Group    13 (             CL) has     2 elements
 Group    14 (          Water) has   144 elements
 Group    15 (            SOL) has   144 elements
 Group    16 (      non-Water) has  2472 elements
 Group    17 ( Water_and_ions) has   146 elements My question is that is it possible to modify that group selection? I want to add in group analysis on alpha helix & beta sheet.For example Group 18 (Alpha helix) has 999 elements. If it is possible? How & where can I do that?  Hope you reply a.s.a.p
 
Many thanks,
Suhaila