Hide system accounts from GAL

NethServer Version: NethServer release 7.3.1611 (Final)
Module: good question

Hi Guys,

Could anyone help me if there is a way to hide some user accounts from the address book globally?
I created a few accounts which i only user for administration etc…, but they show up everywhere (nextcloud, jabber, sogo…)
Anyone knows a way to hide them globally?

Thanks

Why do you need administration users? How do you use them?