How can I show all internal classes to all projects in Visual Studio solution?

I have solution in Visual Studio, so this solution contains a few projects, also I have public only interfaces and internal classes, I'll开发者_如何学JAVA use ILMerge for build one dll from all projects in this solution, Attention :) question, How can I show all internal classes to all projects in solution? Thanks.

I believe you are looking for the InternalsVisibleToAttribute?