Adding Misc files to Solution Explorer

I assume this is the best forum for this quesiton; if not, please direct me.

I have noticed that I can add (for example) a text file to a misc folder in a SQL Server project by dragging and dropping the file from Windows Explorer onto the Misc folder inside the SQL Server project. Is this the only way to add a file?

I noticed, for example, I could not copy and past to the Misc file folder.
Is there another way? If so, what is it? what is the preferred way?

I noticed that there have bee 55 views of this thread. It was posted Monday morning. would someone take a stab at it?|||The other way to add a file is to right click on the Project, select Add Existing Item, then Browse to the file in question (you need to change the File Type at the bottom to "All" in order to see text files, etc.).

Thanks, MJ