i would like to add a third powerbar (5.1) to my profilux P3. I already have the first powerbar to the sockets S9-S14 and the second S15-S20 (S1-S8 are for 2 dosing units). I would like the new 5.1 to be S21 to S26. How do i proceed? I am afraid to loose my settings of the 2 first powerbar during the process.