How would I do something like the following:

An option screen shows 5 checkboxes for each column in a report. The user can choose any combination of the 5 and the columns must print beside each other.

i.e
User chooses Columns 1, 2 and 5. I should print
Column1 Column2 Column5

User chooses Columns 2, 4 and 5. I should print
Column2 Column4 Column5

User chooses Columns 1, 2, 4 and 5. I should print
Column1 Column2 Column4 Column5

I am using Crystal Reports7. TIA