Two questions:

1. I am trying to create a section which resides alongside Content, users, members, developer etc but in Umbraco 7

When i add in majority of references and write this code

 [Tree("Shop", "Umbraco Section Custom", "Custom")]
public class CustomNodes : BaseTree

I get an error that the Tree ref cant be found. What reference would be required to overcome this issue?

1. I also looked at the Umbraco 7 version of creating sections but when i looked at this link http://www.enkelmedia.se/blogg/2013/11/22/custom-sections-in-umbraco-7-%E2%80%93-part-2-the-views.aspx i was surprised this only allowed html files to use?

How could i use an aspx page instead of edit.html which would contain usual ASP .Net controls?

Thanks