I haven't yet written a guide or instructions on the app. Once it's fully ready for release I'll write them up.

If you are using it to play WOW then all you really need to get you going is to add 'asdw' keys to the "do not pass" list (this prevents the clients from breaking follow in game when controlling your main). I'd also advise making the 'enter' & 'tilda' keys toggle broadcaster on/off. To do this simply click in the smaller edit box below the larger list box and hit the corresponding key.