Instead of having the bins be 30 from 0-780 in this case, would it be possible for it to go from 0 to 240 by 30 and then treat everything greater than 240 as a single bin?
Also for people who are not familiar with histograms, instead of having the 0-30 bin labled as 0, is it possible to label it 0-30, 30-60 and so on without changing each individual alias?
Yes, but you need a calculation before you create the bin.
the calculation should be something like
if [Response to complete in minutes] < 0 Then
elseif [Response to complete in minutes] >240 then
[Response to complete in minutes]
And then create a bin based on this calculation field
Hope this helps