If you have hidden an enumeration value and now want to view it in the flex folder tree, you can remove the hidden attribute.
Hover your cursor over a flex folder node or any item under an expanded node.
The Subscriptions dialog box appears. Click the Flex Folders drop-down list to select the flex folder, if needed.
Hover your cursor over the flex folder node; when the pop-up menu appears, select View hidden ><enumeration name>.
The Hidden values for: <enumeration name> dialog box appears. Select the check box(es) for the hidden item(s) you want to re-enable and then click OK.