I am working on creating a Flex mobile application and the roadblock I am hitting is the DropDownListField. Drop down lists are not mobile optimized and unsupported. I am working with teh FieldInspector to try and get a StringField with a click action to open up a callout with ButtonBarField, buttons or radio box within the callout. A couple of the things I am grappling with is passing the data into the callout and how to get the ButtonBarField to be created from the domain list of the feature layer and to pass the selected button data back to the StringField. As far as I can tell you can not put two components into the editor for the FieldInspector. Below is what I was starting with trying to utilize a callout within the fx:Declarations. Any help would be appreciated. <esri:FieldInspector id="MH_TypeFI" featureLayer="{sanMH}" fieldName="MH_Type" label="Manhole Type"> <esri:editor> <fx:Component> <s:Group click="outerDocument.coMH_Type.open(sfMH_Type)"> <esri:StringField id="sfMH_Type"> </esri:StringField> </s:Group> </fx:Component> </esri:editor> </esri:FieldInspector>