cwt in EEG analysis - how to adapt "number of cycles" in cwt function

Dear all,

I'm testing Wavelet toolbox and I would like to compare it with result, which I have from FieldTrip or EEGlab. And also, compare the speed of calculations. However, I'm not able to find out how can I change the number of cycles of my Morlet wavelet. To be honest, I can't figure out which parameter in cwt code states for size of Gauss window, Morlet parameters, etc. Is it even possible?

So, does anyone know which options I have to play with to have for exaple a Morlet wavelet with 6 and then 12 cycles?

Thank you in advance.