would be useful to have clickable categories on the open a ticket screen, for example could have a top level one called 'collaboration', then click through to see 'email' 'calendar' etc. then click 'email' for example to see all relevant email service actions. Much more user friendly than a drop down that's hidden at the top and much tidier, especially if you only have a 'top 10' list of main service actions. means some customers may miss the larger selection.
The Portal and Nano Interfaces have been made fully responsive in the upcoming 10.5 release and as part of this work the Portal Type Tier control has been replaced with the Core Type Tier Control that will be available in the 10.4 release. This will allow an End User to drill through the categories. Service Actions will also be visible from the Global Search functionality.
I have creates another Feature Suggestion to cover the drill through functionality from Call Type/Category through to linked Service Catalog https://alemba.aha.io/ideas/ideas/CORE-I-928 please vote on this to raise the idea higher in the suggestions list.