Our 1st set of books has two companies [01,02]. The inter-company
account default on company 01 is acct 01-1367. On company 02, the
default is 02-1367. When an entry is made in Company 01, using a
Company 02 Cost Center, the inter-company transaction is created in
the background, crediting/debiting Company 01-1367 and
debiting/crediting Company 02-1367.

We now have added a third company [03] which is in its own set of
books. So when a Company 03 Cost Center is keyed in Company 01 an
inter-company transaction should be created crediting/debiting Company
01-1370 in the 1st set of books and debiting/crediting Company 03-1370
in the 2nd set of books. Can this be done?