Is there any possibility to use two independent counters within the
chemnum package? I would like to label (by replacing the tags in my .eps file) substances in reactions and steps in catalytic cycles with different styles. The former with simple numbers, and the latter with letters (A,B,C,...).
If I only change the style of numbering before replacing the tags, I don't get a new counter. So if I already showed the compounds 1,2,3 and now want to describe a step in a cycle,
chemnum will replace the tag with D instead of the favoured (wanted!) A.