EEWB - BUT000 - add new field to older extension

hi,

in the past we have created new fields in BUT000 and in the related customer data tab in BP with the EEWB. A new group of fields per extension has been created.

Now i want to add a new field to an existing group.

If i use the EEWB the field will be created in a new group.

How can i add the new field to an existing group ?

Adding it with EEWB and later move the field to the older group by using the BUS transactions ?

gr

Hans