1. Custom Shortcuts
Proper allows shortcuts for common datatypes - for int you simly type i_ and the same is true for bool (b_), string (s_), datetime (dt_), as well as a few others. If you have a classname that you need to build properties on, you can add your own prefix and follow that with an underscore when you're defining your properties. You could, for example, use sq for SqlConnection.
More often than not properties have a simple definition that needn't be stepped through when debugging. A while back I started adding the System.Diagnostics.DebuggerStepThrough attribute to pieces of code like this - I've added this feature to proper with a checkbox option.
Future features? Whenever I have time the following:
1. Ability to remove custom shortcuts gracefully
2. Settings and shortcuts stored in a cookie