Gauge with 2 channels combined

I'm busy with monitoring licenses from Office 365 which works pretty good but now I want to show this on a decent way on a map. This is something I have problems with. I can hide some channels in the sensor so I only see the channels I want (total and free licenses) but on the map I can't get it the way I want it.

My table looks like

Channel             Last Value
---------------------------------
Free licenses       15
Total licenses      100

I have this table for several sensors, for each product 1 sensor with 2 channels.

1. I want to see a gauge with the free licenses shown as well as the used licenses. So for example 100 licenses and 15 free will show a small piece of the gauge (15) in green and the rest (85) red.

1. One table with the data of several sensors like above (each with 2 channels), I tried this with a factory sensor but I don't get any data. I configured the factory sensor with a channel definition like:

#1:Project Total
channel (8667,6)
#2:Project Free
channel (8667,5)
#3:E3 Total
channel (8668,6)
#4:E3 Free
channel (8668,5)

channel-gauges custom-sensor map-editor