See email from Ron: Fri, Apr 8, 2011 at 7:51 AM

I was trying to set the w/l to w=2 and l=0 by using the sliders in the w/l component of the volumes module. I was using the attached volume, which is a parameter map, which should be displayed with an inverted rainbow LUT. I was not very successful in accomplishing this using the sliders.
Then I tried to use the numeric input panels to accomplish the same (see attached). At that point, the highlighted value could not be changed by typing, the up and down arrows to the right of the field, worked with an increment of 1, which is not very useful, if you are a few hundred units from where you want to be. I unselected the blue hightlight and tried to delete the value in the field, and that changed the numbers to the right of the decimal in way that do not make sense to me (numbers were changed, instead of being deleted).

What is the meaning of manual min/max?

Finally, the histogram does not make sense as it is now. It should be tied into w/l using lines to show where we are. We need to discuss this on the phone.