\
If you have an Executive Club Household Account, you can create a List of Family and Friends, so you can spend your Household Avios on more people who don’t live at the same address as you.
The Family and Friends list allows Executive Club members who are part of a Household Account to redeem Avios for up to five nominated individuals who do not live at the same address. You can add, view and make changes to your Family and Friends list, once you have logged into your online Executive Club account.
As for making changes to this list, you can make changes to your Family and Friends list at any time, however anyone that you add to your list must remain on your list for a minimum of 6 months.
You can read more about Household Accounts and The Friends And Family List Here