Although I have enabled the option "show operational attributes" under Preferenes; LDAP, Entry Editior, Attributes like "administrativerole" and "prescriptiveaci" are not show in the entry editor, but are available via the LDIF export, so they are here!
As I'm not the LDIF guru, an option to use the very nice gui to manage those would be great!
Maybe I did something wrong, but I couldn't figure out what?!
Thank you for lending me a hand