We use Zendesk as the support portal at my company. We get a lot of requests to make changes to products, as well as bug reports. A lot of requests come to our data department with "due dates" of, basically, today or ASAP or tomorrow. What I would like to do is give our users a calendar that lets them select a due date, but make it so that the first available due date is always 6, 7 or 8 days in the future. This is for political reasons as much as anything.