If you wish to add a single extra information to a particular page, select the Booking X Extra Listing Block, then in the Block Content Settings Set the “Select Base” to the service you desire.
If your using classic editor or your theme doesn’t support blocks, goto Booking X -> Extra , to view your extras. copy the shortcode from the right column e.g. [bookingx extra-id=”142″ description=”yes” image=”yes” extra-info=”no”]
Then paste into your desired page.