To build out a realistic forecast you need to ensure all expected invoices and bill payments are set a future date BUT more importantly you need to add in forecasts related to key overheads, statutory obligations, payables and revenues.
You can add a one-off payment OR a recurring payment.
Go to Forecasting Tool > Cash In/ Cash Out Tab > Add Payment or Add Recurring Payment
Select the Account type, the forecasted amount and pay date the first payment.
For a recurring payment select the payment cycle.
If the recurring payment is only for certain period of time, select the end date also. This is useful for payments related to loans or ATO repayment plans.
If the account name for the transaction isn't in the dropdown you can add in a new transaction name for the transaction by selecting New Account and adding the new name.