check menu 25.3.3 - Entity Code Change
this program will go through all transactions (GL related)
and change the Entity from old code to new one
(it is "move" rather than "copy")
try it on Test DB first, and see what happens
the text says that the new Entity must be empty,
no transactions, no budgets..
and it will not change the control/master files where the old entity
is mentioned
there is no menu to do what you require. you have to buid CIM's to replicate
chart of account, and other Entity related data..