Alpha Group with two letters / UPnP search?

[jacobacci]

I am using alphagroup for my browsing with MinimServer. If I click Album Artist, I get an alphabetic list of letters I can then chose from. So far so good.
I have several letters in which I get >100 entries when I click the letter. this means a lot of scrolling down to get to the end.
Is it possible to have a list not with the individual artists, but with a two letter alphagroup when I click on the first letter. e.g. ga gb gc gd etc.
Thanks a lot for any hints