Hi All, 
I've just found the RRdistance Map function on Chimera and
would like to compare between structures.
I would like to:
1- make contact map of protein 1 to protein 1 with a cutoff of about 6 angstroms
2- make a contact map of protein 2 to protein 2 with a cutoff of about 6 angstroms
3- compare these two contact maps using the colors available for the whole contact map.

I can only seem to compare the ENTIRE contact map of protein 1 to the ENTIRE map of protein 2, whereas I'd like to mask any contacts over 6 angstroms.

Alternatively, if anyone knows of a way to export residue lists of contacts from the contact map site I could just compare them that way.

ALSO:
Anyone know of a way to map defined attributes onto a contact map?

Thanks so much!
Sincerely,
Nicky