How to create a dataset in analytics from a multiple documents

user:{ ,
id:“1”
addressId:“Doc_id_of_addressDoc”,
emailId:“Doc_id_of_EmailDoc”,
otherid:“Doc_id_of_otherDoc”
}

address:{


}
emailaddress:{


}
other:{


}

analytics****dataset for a userid ;-1 will be like
user_doc_of_id_1:{
address:{

. …
},
emailaddress:{
. …
. …
},
other:{
. …
. …
}
}

Analytics datasets currently can only contain the original documents.