Sorry but everything in this plugin is built specifically to use its own ledger, not MyCred. I have moved from using a ledger based on custom SQL tables to using CPTs as a ledger, and this has its advantages, but this change required 2 years of work and a complete rewrite of the plugin. What you are thinking of would be an extension to MyCred, which would be a different thing altogether. It’s out of the question for me to do this.
Perhaps someone interested in building MyCred extensions can do this. Interfacing with the wallets is the easy part.
P.S. Apologies for the late reply. I wasn’t notifies about this thread. I will look into this.