How to add Visual Studio class (version 2010) in AOT of AX 2012?

Hi Friends,

How can I add the Visual studio class to AOT?

From the searchings in net, I saw that by right-clicking the class in Solution Explorer an option "Add <class> to AOT" is listed in the menu. But in my VS, I did not find such option. What should I do to list that option in the menu?

Thanks,

Aarvi