Draoued -
Thank you. I tried that method, and it works great.
I was also able to get this to work by doing the following:
Create a value prompt as a check box with static choices for each column.
Create a boolean variable for each column, using the "contain" function (i.e. ParamValue('DisplayOptions') contains 'A1B')
Selecting each List Column individually, and setting the Render Variable to the boolean variable you created for the column.
It takes a lot of time, especially with 80 choices, but it worked.