You can change the user directory types that are available. To do this you need to update the source files before you create a new user directory connector.
Do the following:
Add or remove the user directory type source file located in: %ProgramFiles%\Qlik\Sense\Repository\UserDirectoryConnectors.
Open the QMC: https://<QPS server name>/qmc
Select User directory connectors on the QMC start page or from the Start drop-down menu to display the overview.
Click Update user directory types in the action bar at the bottom of the page.
Successfully updated user directory types from source is displayed at the bottom of the page.
You have now made the user directory types available for the user directory connectors.