Why there is no generic list in WPF Settings?

Question

I wanted to save a List of objects in a WPF application using the Settings, but there is no such collection type. My app is very simple, so I didn't want to use any database, XML or other options.
I guess that Settings should be used for storing the settings (nothing insightful...), but why collections like Stack or Queue are still available?

Screenshots from project's Settings:

Answer 1

I think the problem is specification of generic type. How will you specify the generic type, if you chose the type of your setting List<T> , where will you specify T ? So there are collections which works with object s and boxing, eg ArrayList .