Hi
You just have to run AMARES chose approximately the number of peak that you ecpected, then you just have with the mouse one click in the peak, and then a second click in the half of the peak (right or left in the peak) to define a width for the fit, and a new peak have to appear in your AMARES list of peaks.
Then if you need in the first screen of AMARES you can change the position of the peak and the width, also there are more parmeters in the second and thirt tab that you can use.