It looks like this might be your first time here!
Before you can start adding position data to your ledger you will
want to create at least one account name using the "Accounts" selector
at the top (right) of the page. You can have one or more accounts,
and each transaction entry is associated with an account you choose when entering the transaction. This allows you to keep trades in different accounts separate.
If you are restoring a previously-backed up ledger then you can proceed directly to the Settings page using the gear icon where you can reload saved data.
Check out the Info button at the top right for more details about the site and help.