How can I  have option, products, on a package.
 
	Let's say I got a Voip Service a package, that only give me the option to have pricing.
 
	1   month   $wherever
 
	1  year $ wherever
 
	 
 
	so, but on the 1 month I want to charge for 2 or more phone, I don't see that option until the invoice is created.
 
	How can I fix that?