Trouble debugging with my Oculus

[SM Sith Lord]

I have trouble enabling VR mode while running my Source engine mod in the Visual Studio debugger. When I go to Video Options, I can't enable VR because it doesn't detect my Oculus.

However, if I build my game, upload it, and test it through Steam, it is able to detect my Oculus without issue. Is there a way to force the Source engine to detect my Oculus while in debug mode?