WP Job Manager + FacetWP Proximity (extend results with empty location)

Job ID: 34115405

Budget: €30 – €250 EUR

For a job board website build with WP Job Manager we use FACETWP to filter jobs.
One of the possible filters is to filter job listings on Location / Proximity. This works fine for every job listing where a location has been filled in. However, there are job listings that aren't tied to a specific location, like for example "telemarketing, working from home, etc..."

What I would like is to have job listings where no location / proximity is filled in to be included when a visitor filters for any specific location.
Example: when searching for Amsterdam 5km, it currently only shows all listings within 5km from Amsterdam and it doesn't include listings without a location. I would like those empty location listings to be included inside the results from facetwp.

Hope this is clear.
Related categories: PHP WordPress HTML Coding Web Development