Experiment 7: how to extend the offered load to range of values

Hi everybody,
I am currently playing around with the seventh experiment IEEE 802.11 DraftN and wondering about the offered load which is fixed to 100000 and results in a single point in the wrowser.

Edit: I don't want to use the Binary Search but the normal/linear search instead.

offeredTraffic = Int(default = 100000)

Is there any quick way to extend this fixed value to a range of values?
I tried something like
offeredTraffic = Int(parameterRange = [100000, 200000, 300000]) according to the lines above in campaignConfiguration.py

or

for i in xrange(1,11):
   params.offeredTraffic = i * 1000000
   params.write()
like in experiment 1.

Apparently I missed something to add, because this did not work out...

Thanks for your help!