indexing the matrix list

[delibrax]

Hi guys,

I would like to query index number of the list matrix of skinning (image attached). I make function the list connection with source flag for the matrix and then have the index number of them using enumerate (0 to 5). But then, once I add the skin infuence with new joints to object and rightafter I'm looking up the new index number it's shown starting from 0 again. I would like to have index new joints according the matrix number (should start from index 6 in my case). Any solution?

Thank you,