consolidate all fields in a structure

hello, This agian is a consolidation question if I have a set of fields in a structure

say I have a structure mystruct which is a 1x2

struct array with fields

='id'
'name'
'age'
..etc

but say my field name has fields too so

fields(mystruct.name)
=
'lastname'
'firstname'

and perhaps my firstname could have additonal fields

fields(mystruct.name.firstname)
='nickname'

At the end I want to consolidate all this information into a single BigStruct

BigStruct.name.firstname = [mystruct(1).name.firstname, mystruct(2).name.firstname ..etc]
BigStruct.name.lastname = [mystruct(1).name.lastname, mystruct(2).name.lastname ..etc]
BigStruct.id =[mystruct(1).id, mystruct(2).id ..]

The assumption is they are all the same length so they can be concatenated.. How do I do this without having to specifiy each field or sub fields

Thanks so much! HD