Choice widgets are those widgets that are able to display/write PV value as a particular state among multiple states, such as Combo Box, Radio Box and Choice Button. It will use PV's string value to match the state. If no matched state was found, no state will be chosen. If the PV is not a String PV, it will convert its value to a string for matching. So, it uses the string value of an EPICS enum PV.
Simply click the widget to make the choice. It will write the correponding string value to PV.
Items From PV
is yes.