you will need to have all of the profiles you are adding to the family pack, on the console. then you can go into "family center". you should still have family center on there even though you dont have all the profiles on the console, but i'm not exactly
sure where it is located as i haven't accessed a family pack in a while. it used to be under system i believe. it may be easier for you if you do it through the website.
under your gamertag at the top right of the website, there is an option for "my account" once you're in there, i believe you can find where to select the family center.
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