[modeller_usage] restraints from multiple templates

I was wondering how modeller uses the structural information of multiple templates. Are all aligned residues of all the templates used to create the restraints and are they weighted in any way e.g. by sequence identity of template to target or by residue type (exact matches weighted more than disimilar aa's)?

Also how can I alter these things so that I can tailor the restraints that I use depending on in/dels and sequence similarity etc?

Thanks in advance

Mat