I have a Line of Credit - do I connect that account in the bank connections?
No, you do not need to connect loans or lines of credit. This is because the proceeds you receive from those debt instruments will be cash inflows into your bank account, and when you make payments on them, those payments will be cash outflows from your bank account. You will simply categorize those cash inflows and outflows to the corresponding loan or line of credit account in your Chart of Accounts.