Good Afternoon Domagoj.
This is a kind of general statement, reading:
The USS-UI is difficult to customize. Almost all of it, is 'hardcoded' in the widgets as installed.
Sometimes it is possible to change somethign on 'colors' e.g.
For the functionality you are asking for, I can only propose to open Ideas in the Community.
In other words, customizations allowed on USS are very limited.
You cannot customize USS on the similar level of SC or SDM.
The only things you can do are changing logos, company name, etc.
Please chekc the below page for this:
https://docops.ca.com/ca-service-management/14-1/en/administering/configuring-unified-self-service/modify-unified-self-service
Should however any one else in the Community got this customization implemented, then let's see in this thread.
Thanks and kind regards, Louis van Amelsfort.