Do you mean creating groups from measures? This can be done by creating a calculation field, i.e.:
if sum([Sales])>1000 then '1,000-2,000'
elseif sum([Sales])>2000 then '2,000-3,000'
elseif sum([Sales])>3000 then '3,000+'
It's important to note that a dimension will need to be on the view somewhere for these groups to not all fall in the same group.
Hope this helps!