Add Custom Attribute to all Computers

Hello,
i would like to add a custom Attribute to all kind of computers. But there is no way to choose computers in the drop-down-field.
image
i could choose one by one out of the list but this does not affect ubuntu linux clients.

UCS: 4.2-1 errata159
App Center compatibility: 4
Installed: cups=1.7.5 dhcp-server=11.0.0 mobydick=1.0.0 nagios=3.5 pkgdb=10 samba4=4.6 self-service=2.0
Upgradable:

Greets
Matthias Hütter

Hi,

The Ubuntu client was discussed here:

Thank you for your link ahrnke.
This works for me

Greets

Mastodon