Like this:
If you are using TV, you still need a show directory. If you are using "Movie", you can put whatever you want in there. I'd recommend using "Video" and creating a folder called "Apps" and putting it in there.
To be clear, what you are doing is not a supported feature. Stream Links are to bring you directly to a program, not to the generic launch page. What you are describing is a hack workaround to get to the app without going anywhere. I'm not sure why you want to do that and still have to navigate around in the app instead of just having a single interface in Channels, but to each their own, I suppose!