The idea is to use a 'vernier' dial analogy, whereby you can either of course edit the values by hand in the config dialog, but you can also select the outer dial and adjust it with either mouse or keyboard (up/down and pgUp/pgDn).
Eventually, there will be a tab for the P factor, a tab for the I factor, and a tab for the rest of the adjustments (rate limits etc).
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2847 ebee16cc-31ac-478f-84a7-5cbb03baadba