I've been playing around with this extension and have a question about projections. We typically map using an Albers projection with parameters customized for the region we map (Oregon and Washington), and with the central meridian modified for each map extent. I don't see the ability to do that here- am I missing something? Alternatively, is it possible to edit the list of projections? Where are the projection files stored? I'd like to clear out the thousand or so we won't use and add in some with the parameters we use.