I'll ask one of the developers to add it into your list for you as it would seem the issue still stands whereby it doesn't add when you click on the pin. Once our new responsive website is fully finished the total number of Quickpicks is due to be raised.
Just to let you know that this is still outstanding. Please note though that the pin displays as though it has been selected - but AST is not showing in my QuickPick list. I had a similar problem with RRR several months ago - although that one was quickly fixed within the same day.