Want to use Manager from back date

I would like to use this Manager product right from start of financial year 2016-17, i.e from 01-April-2016 by inputting all my business transactions carried till today.
Please let me know how to go about this.

Just enter the old transactions with dates they occurred. All fields are editable. If you have balances to carry forward from a previous accounting system, set your Start Date to 1 April 2016 and enter the opening balances as you set up your chart of accounts.