First off, wanted to say Thanks for your work on FiltaQuilla. It has added a lot of functions that were seriously missing from the basic Thunderbird.
There is one additional option that I would think several people would find useful if it is possibe. I have an archive function set up to help keep my mail folders below the 4G limit on Windows machines. The archive filter moves old e-mail based on it's age. What I would like to do would be to either set the archive filter to run on specific folders on a schedule or to just have the archive filter run every time I start thunderbird.