My next task is to find a translation of the pull down list options with the parameters they adjust. Some are pretty easy to figure out - others, not so much.
I think the descriptions in the table on the Transmitter based tuning wiki page is up to date.
A hint to make sure the configured parameter is working on your chan 6 pot. Connect and on the Extended Tuning screen turn the pot and then hit the Refresh screen button. You should see a change for that parameter on the screen. This feature was broken for awhile but it seems to be working now.
What I do is start with the pot on the low end and make some aggressive attitude changes, then turn the pot and repeat for 5 or 6 steps. Then review the log plotting RCIN6 along with whatever parameter you are looking at (Des P/P for example) and look for the best response, It can be time consuming!