Additional offers can show your guests alternative price options for example refundable/non refundable or packages.
*If you choose that your "Offer type" is per property your offers will be available across all properties.
*If you choose that your "Offer type" is per room you can set up separate offers for all rooms.
This example shows one room which shows offer 1 only (the default) and one room for which one additional offer is set up: