From where you will set the invoice printer type?

Go to Admin -> RestroFood

To use pre order system you need to set some settings from restrofood delivery settings. Please follow the screenshot. After set all settings you will find the date and time select option in checkout page How to hide delivery date and time from checkout page?

Upload the xml file. Note: You should upload restrofood product xml first then restrofood media xml file

Restrofood provides 3 unique cart style options. You can choose the one that you prefer most. You can set it globally from the settings option or a specific Elementor widget. Follow the screenshots to set the settings.