A Microsoft file hosting and synchronization service.
Hello Neha,
Thank you for coming to the forum. My name is Fuad, and I'm happy to help you in the best way I can.
Every family gets 1TB each, and you cannot assign another 1TB to anyone or yourself from the 6TB, you only get a maximum of 1TB and the other party too will get 1TB. The remaining 4TB will not be available for you to manage or assign. It will just remain available until you add another person to the family subscription.
To add others to the family, click this link here and read the guide: https://support.microsoft.com/help/b389b9ce-3ae3-4a82-9017-39d79972fcba
I kindly await a reply for a follow-up
Best Regards Fuad