PWM frequency library

Hi
I'm not quite clear as to these statements:

Has pin based (timer agnostic) functions
Has functions for getting and setting frequency at the timer level and pin level

I want to use your library to up the frequency of the PWM on my motor control project (motors are noisy) on a Uno. It is a twin motor control so I use pins 5, 6 for one and pins 9,10 for other.
Pins 5, 6 are timer0 and I don't want to mess with that timer.
So the next step would be to change it to pins 3, 11 to use the other timer. This would mean hacking my shield.
And that is why I don't understand the above. Does this mean I can map the PWM output to any pin?

I haven't used your library yet, just want to clear this first.

Thanks.