I'm creating a form with a release date in format yyyy-mmm-dd. then i created a control for re-test date with =DateAdd["m",18,[DateOfRelease]) for re-testing the material in 18 months. in the same control i'd like to add a re-test date with =DateAdd["m",12,[DateOfRelease]) for re-testing the material in 12 months.
is there a way i can have multiple formulas in one control? or is making a list box better?