Hi! I'm new to Force.com development (from .NET background) and LOVING the Welkin Suite. Thanks for the work you're doing!
A few features that would be really nice:
I love the ability to collapse code to definitions. I miss the right-click shortcut to "Outlining" functions. However, I have found that the shortcuts ctrl+m, ctrl+s and ctrl+m, ctrl+p still work for this. It would be nice to have that in a right-click, Outlining menu though.
Also, right-click to Find All References and view Call Hierarchy would be awesome.
I know it's not likely but I was also wondering if it is possible or if your team has any plans to implement some sort of step-through type of debugging feature. I'm aware of Salesforce's new debugger but that one is very limited and fairly costly for what it is. I understand that the nature of the platform may make this impossible. I'm working to eliminate the need for that by implementing TDD and your tool is helping lots with that.