Hello again,
Now it popped into my mind what the Retained Earning Clearing Account is about. It is the account for accumulating the profits during the fiscal years.
To your last question you should create an account, probably the last one in your cost group and call this account for something like 'Year Profit Clearing'.
The last transaction of the fiscal year will then be a debit to this account for your profit and credit to the Retained Earning Clearing Account.
If there is no profit, but loss, you should use credit and debit instead.
You don't have to this before creating a new fiscal year and start entering on the new year. You can do this later on when your transactions of the previous year has finished. As soon as you have done it, you should close the previous year, to avoid entrance on this year by mistake.
This is the normal way of doing it. There might be slightly different methods in various countries. In that case you should ask an accountant.
/Joe