Overhaul how customer/app roles and notification groups are displayed and managed
The management of roles and groups is inconsistent and doesn't scale for managing large numbers of them.
When selection roles to change it would be good to have a search filter to help find the right one.
In 'Change an app role' the drop-down for Customer role and the pop-up check list for Alert Groups does scale for when there are many roles/groups to select from. This would benefit greatly from being rethought.