In previous versions of Epic I've been able to cycle through the
different types of quotes and dashes just by pressing the key
multiple times. This functionality is not appearing in our document
type nor was I able to get it to work in the DITA concept templates
using 5.3 m10.
In our doctype I even went into the dcf file and specifically allowed
this on an element with the same result.
This functionality is still documented in the Help system so I'm
assuming that it is still a supported feature.