As long as you don't exceed occupancy.In general.. The CM will scan your magic band ask to see your DVC card and DL. the Magic band tells them how many guests are staying with you and maybe scan all magic bands that are with you. Sometimes they will just scan Magic bands to see if you are DVC member. In other words you would need to ask if you can.... But as above the official policy is no so be prepared for that answer. The other option is to list the family members as staying your room since they are staying offsite.