sorry if this has been asked before. i set up my son in laws xbox one today and opened an account for him, tried to add avatars for his 2 sons and cant for the life of me work it out. I opened his avatar and tried customise profile, edit avatar but there is no way to save the new avatar (the save button) is greyed out. I have them on my xbox, would i be able to sign in on their xbox, add them as family and sign back out or would yhey sign out of my account as well, or maybe transfer them using a usb stick. Assistance greatly appreciated.