In order to customise the default sign in page for ADI or change the Group Mappings for ADI access, the ADI administration page must be accessed.
Procedure
The ADI administration page can be accessed by specifying '/admin/index' at the end of your ADI web-server address. In our case our ADI server is named 'ClickViewsso' so to get on to the ADI administration page we would specify 'http://clickviewsso/admin/index' as demonstrated below:
This should present you with the following options:
Note: If you receive a message stating "Sorry. You are not authorized to view this page", follow this article to rectify this problem.
From here, you should be able to customise the SSO sign in screen as desired and amend your group mappings to ensure users at your institution are appropriately mapped to an Active Directory group that they are a direct member of.