I've been using the plugin for the past couple weeks (using 2.0.15.0 RC2 at the moment) and I noticed that number commands don't work on the F9 popup. Instead of picking a selection inside the popup, pressing a number brings up the search window in the background, which is slightly confusing when you already have the F9 popup active, and it can actually switch the actively selected item behind the popup.
FYI, I tried this using a regular keyboard and a Harmony remote programmed as an MCE remote. I don't know if it's a feature or a bug, but with the new deeper menu structure, it would definitely be nice to be able to navigate with just numbers instead of moving the cursor to the right selection. Some plugins (like the Last.FM radio) do this for popup menus already.
Thanks for the excellent plugin though. 2.0.15.0 resurrected about 8 series that were lost in limbo!
That was definitely a bug. The keyboard hook used to catch find keys was a bit too greedy ...
I've fixed this in 2.0.15.