Hello Ryan,
To my knowledge, there is no way of getting a Ring Control to show up as a pull-down menu in TestStand as with the Enum Control.
However, as a workaround, you could create an Enum Control that contains the same menu items as your Ring Control and use the Enum as your TestStand parameter to set the value of your Ring Control. Please see the attached VI. Set the Enum Control and run the VI. The Ring Control will match the Enum Control.
Let me know if this helps.
Manooch H.
National Instruments