Not sure if the concept is limited on the IMX end, but...
Overview:
By allowing “Reverse Listing” in which assets can be requested increasing the immersion of the Illuvidex and generate further revenue.
Functionality:
Using the same filters used to search on the Illuvidex, it can be adapted as a checklist to request certain aspects of an asset (lands, illuvitars, or eventually illuvials) for a set price of choice currency, if a category is left blank, then it is assumed anything can qualify. Those listings can then be fulfilled by those have the asset that meets those requirements. The listing would then go into a pending state in which it awaits final approval of the requester to finalize the exchange.
Revenue:
As with normal listings on the Illuvidex, the fees could be applied in reverse coming out of the price initially set by the requester.