Import Hubspot associated object

Import Hubspot associated object

Hi,
In Hubspot, we created a custom object that has a 1-Many relationship back to Contact.  (1 custom object record ties to 1 Contact.  1 Contact can tie to many custom object records)

I am trying to setup an import in Skyvia but I do not see where I can set the ContactId during the import.

Anyone know how I can do this?

thank you!