The TurboTax Home & Business edition does not support entry of a Form 1065
Form the Form 1065 you will need to get a separate program, the TurboTax Business Edition. The Business Edition can only be installed on a Windows based personal computer, not on a Mac or online.
The Business Edition cannot be used to complete a personal tax return, Form 1040
Go to this TurboTax website for the Business Edition - https://turbotax.intuit.com/small-business-taxes/cd-download/