Hello German> I found your article above and I'm interested in 'how you did achieve the following':
The Domain box should be mandatory shown for all the users in the top bar (Banner)

I want this also - so users don't have to click the gear icon' but always have the domain picker showing.

a/ I have tried to add the following (not working for me) sys_propertys:

-glide.ui.domain_picker.role (added for itil) 
-glide.ui.domain_reference_picker.enabled (true) 
-glide.ui.domain_picker.in_header 

b/ I even tried what you said above for User preference as you mentioned:
-glide.ui.domain_picker.in_header (true) and 'empty' for user.

c/ I also tried to update (make active) the UI Macro called: domain_select 

cleared cache, and users still won't see the picker when I impersonate them to test.

Thx. Denise.