Where are the invoice settings?
Follow the screenshot to get invoice settings options.

Follow the screenshot to get invoice settings options.

If you want to change the order status text which restrofood provide default, You can! just follow the screenshot below:
RestroFood WooCommerce quick order branch management system depends on WooCommerce plugin. So you have must be installed WooCommerce Plugin before use RestroFood plugin.
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Restrofood provides a nice option to check delivery location availability. There has 2 types of options to check delivery location availability by address and zip code. Customers can check delivery availability in their area before ordering. Delivery Availability Checker Popup: Checkout Page Delivery Availability Checker: Follow The screenshot To Set The Location Settings:
After Cooking Complete the order need to assign delivery boy to order delivery. There has a select option to assign delivery boy in the branch and kitchen manager page order view popup. Follow the screenshot below.
Go to Appearance -> Themes -> Add New -> Upload Theme -> Browse and Install Now You will need to install some required plugins to work the theme properly. Follow the below screenshot.