TL;DR: I'm just wondering if a future patch/update for the Rift will have menu options to allow us to map the Touch buttons to keys on the keyboard.
This is actually a feature that I was hoping would be a default part of the Touch setup when it was released. Did a lot of searching before they came out and couldn't find anything on it at all. But got them anyway, and I do really like them, for the games that are made for them anyway. I dislike so far that if a game isn't designed to work for them they don't function at all, this is a large negative for me. I know the Xbox controller has 12 buttons and 2 analog sticks, and the Touch only has 8 buttons and 2 analog sticks. But there are plenty of games that don't use all 12 buttons and just don't need the tracking part at all. I'll use The Vanishing of Ethan Carter as an example. It's a VR game that uses only like 2-3 buttons and 1 analog stick on the Xbox controller. Could easily have the same inputs on just your right hand Touch controller. I know the game developer could make it work that way if they wanted to as well, but why limit it to only the game developer.
There are tons of games out there that would work just fine in VR if we were just able to map button X with any keyboard button. I find the Touch controllers to be more comfortable than the Xbox controller (I'm actually not a fan of any console's controller really, but the Touch is nice. Having my hands to the sides rather than directly in front of me is quite comfortable). The Logitech Game Controllers/Keyboard application for remapping keys on their products is a great example of a starting point to do this in my opinion. Something very similar could be made in the Rift to do this exact thing.
I have done searches to see if other have asked this question as well, and I do find a few (not nearly as many as I thought though) asking on various sites about this same type of functionality. The main roadblock being that the Touch doesn't show up in Windows as a Game Controller since it connects to the Rift itself and not to the PC. I'm sure there are advantages to this method. If it was a Game Controller this would have been an available feature on day one. I'm hoping that if this isn't a planned function or feature of the Touch that at some point someone who is better with programming and DLL's and what not than I am makes an app to do this. I'd gladly pay a few dollars for this type of functionality. Of course, if it was built into the Rift system itself I'm sure it would be a lot more stable and easier to distribute.