A FIT allotment will be displayed on the search.
For each property card you see on the search you will see a Allotments available in the top right corner in the card.
If you have multiple allotments on these dates at the same property, a drop down list will appear where you can choose from which allotment you want to use this booking for.
A property can have a setting where you can book also regular rooms first, before you book the allotted rooms. That is a setting that the property has to make on the co-operations page.