In our data card, I have a variable called "Product_Name" that has a dropdown list that is presented to the user to make a selection.  My problem is that I would like to be able to have the user select multiple values from the dropdown list, but he is only able to select one of the values.  What I am trying to achieve is that the document can belong to multiple Products, so what I would like the user to be able to do is highlight more than just one value from the list.

Do you have any suggestions on how to best handle this?

Thank you in advance.

Dave