Definitely in which case you’re going to want to calculate that number
channel 1 = 1
channel 2 = 2
channel 3 = 4
channel 4 = 8
channel 5 = 16
channel 6 = 32
channel 7 = 64
channel 8 = 128
so if I wanted to only use channels 1,2,7,8 then it would 1 + 2 + 64 +128 = 195 and I would enter 195 into TipSelection to just pick up those tips in the example above.
Also make sure all 8 tips are selected and highlighted blue as seen in the picture above.
Finally, have fun.