Good Day

I have a Problem with the variables for Notifications. I added a "User – Additional Field" and I want to use the Field in a notification template. However when I type in the $-Symbol in the editor of the notification. The Field I added is not displayed. Could you help me out there?

Our use case is that we would like to personalize our Notifications with "Dear Mister last name" or "Dear Madam last name". We have saved this information about the user in our Active Directory and we are able to import it. However, the variable is not listed in the editor.