Link CPT to 2 other CPTs?

I have created multiple CPTs.

I have renamed the Place CPT (gd_place) to “Business.” I have created a CPT called “Jobs.” I have created another CPT called “Education.”

I would like to be able to link a Jobs listing to either a Business listing or an Education listing.

Currently, it appears that I can only link the Jobs CPT to one other type. Within:

GeoDirectory | Custom Post Types | Edit gd_job | Advanced Mode Tab | Link Business

Section there is a Select Post Type dropdown where I can select one CPT.

Is there any way for me to allow the CPT gd_job to be linked to either gd_business or gd_education?

I would love to be able to allow a user who is posting a job listing for an educational institution to link the job to their school listing.

Thanks!