Checkout Settings

Go to Admin > Practitioner Profile > Settings > Checkout

The practitioner checkout settings lets the practitioner choose default options for checkout to make the process go faster.   
The system will auto-select specific checkout options, which can still be changed during the checkout process.

Payment Settings 

Auto-select if patient will be paying

Auto-Select if practitioner will be paying

Shipping Options 

Auto-select Ship to Patient
Auto-Select Ship to Practitioner
Auto-Select Pickup Option