Project Window Wish Items When you right click on "<file>.c" in the project window, add an option "Open <file>.h". Likewise, when you right click on "<file>.a51" in the project window, add an option "Open <file>.inc". It is a multistep process to add a ".h" or ".inc" as a text file to the project It should be as easy as adding a ".c" or a ".a51" file to the project. Also, add a "rename" option when you right click a Target, Group, or File in the project window.