Hi

I'd like to be able to offer an attribute and allow the customer to add more than one of them to the product...

So, for example:
Main Product = Posh Writing Pen
Attribute = Spare Refills

Technically, Spare refills is a product in it's own right but i'd like to add it as an attribute so the customer can see it when they purchase the pen. I've got that far, but what if the customer wants 10 spare refills... is this possible with Zen cart. Or is there a different way of acheiving this that I have missed?

Cheers
Ben