Definitely cool. If when creating your own multiple choice questions, if you select the "show text box upon selection" checkbox, I think you should be able to

Definitely cool. If when creating your own multiple choice questions, if you select the "show text box upon selection" checkbox, I think you should be able to define text for a label that appears next to the textbox (that would contain something like "Please explain", or "Tell us more"). Good stuff. Thanks.