Adding bioregions to location filters for projects

Is it possible to add specifc regions to iNat so they appear in filter options for location in iNat projects?
Eg. adding IBRA regions of Australia: https://www.environment.gov.au/system/files/pages/5b3d2d31-2355-4b60-820c-e370572b2520/files/bioregions-new.pdf

The regions would have to exist as a place/location. I made this project by combining several ecoregions and counties:
https://www.inaturalist.org/projects/south-central-us-ecoregions
New places can be made but that’s a whole nother topic

Thanks. I guess it would be useful to be able to add a region based on polygon etc. I’ll put that in as a feature request

That is something you can do already. That’s what I meant by a place/location