I recommend a deadzone in the centre, not sure what this pause and re-center business is about. I say you don't need any extra commands, that's the point of having tracking. The deadzone will help you keep looking square down the sights when you need to, and I'd recommend speeding the movement up a bit so you don't have to move your head so far.
I don't like the software much, have had profile issues and it never seems to save some of the changes I make, until you've tried 5 or 6 times.
You'll have it how you want soon enough !

Good Lord I am glad to read this! I am a total newb to flight sims....trying to learn Tir5, re-learn my old stick I barely used a few years back when I first tried RoF and of course I had to get Pro Peds as well... and then buy about 2 dozen aircraft! lol!
My damn'd Track IR is a love hate for sure. I love it period. Don't think I *could* play this game without it, but it always seems to lose center. Every flight. No doubt it is me... I just need to nail down what the hell I am doing wrong....as I figure out why my peddles are reversed (sometimes?) ... and let me tell you it is damn tough learning how to fly a new plane when after the second crash you realize the damned rudder is backwards! lol.
NOW I know why pilots ALWAYS did a preflight and checked rudder and flaps! I do so myself now every time too! lol.
I had not tried the "dead zone". I will tonight. I did figure out on my 2nd flight I had to speed it up a bit or I could not even see behind myself. Looking "up" is still an issue sometimes, and I think it is the height of my camera vs where I sit...still working that out.
Lots of many different things to learn, all at once for an old 'f like me... TrackIR, peddles, stick, many aircraft and of course the actual missions and game itself! If it were not such fun... 
Scott