daisy chain the doser to the 6 socket power bar second western data port.
First you would need to re number everything as follows
S1S4 = socket 1-4 = doser (if 3 pump doser then this would be S1-S3, socket 4 will be spare) the digital power bar will run off this port also
S5S8 = Socket 5-8 = 4 socket power bar plugged into S5-S8
Socket 9 onwards now becomes your digital power bar.
You will need to reprogram your digital power bar, so unplug everything and just have the digital power bar plugged into S1S4, then go to socket function outlet with power applied to the power bar from the wall socket, and follow the instructions to program the digital power bar, you will be programming it to start its numbering from Socket 9 onwards
More support please go to the new profilux support froum in my signature.