Hi, purchased the Extra Product options plugin, registered here but it shows as logged out when I'm in the correct forum.
Anyway, I have a quick query. I'm using the excellent product for a Beauty Salon\Spa. I have a mandatory Select Box for number of guests and optional checkboxes for dining upgrades (see http://www.themanoratbramptonspa.com/product/back-to-school-bliss-2-people-for-39-00/ ).
I'm wanting to automatically multiply the checkboxes - i.e. if there's 3 guests and a dining upgrade for breakfast is selected it adds £15 to the total. Is this possible?

Many thanks,
Kieron