I started with manager for one of our new businesses, which was easy because I started from scratch. Now I would like to go one step further - adding the holding company to manager as well. However, there is one issue. The holding was already there (+/- 20 years old). What would be the best way to add an existing business to Manager? I have the balance sheet of 31/12/2018 and P&L but no ledger transactions before 31/12/2018.