As an example, if you had radio buttons running from 10-19 and 17 is the default you want, then it would be great if you could select it. At the moment, if 17 is the default you want, you have to leave it out of the options and you end up with a selection looking something like this:
Default, 10, 11, 12, 13, 14, 15, 16, 18, 19
Which as you can see, is not very good.
Here's a mock up of what I mean....