Updating Related Records via related actions

Certified Associate Developer

I have two tables with a one to many relationship, an owners table and a pets table which are connected via the Owner ID. The owner can have many pets. I am trying to add an action under the owner summary view for the user to be able to add a new pet that belongs to the owner but I am struggling with how to connect the two records. I have created a related action under owner that points to the add / update pet but I am struggling to connect the owner ID to the pet being added, any help would be greatly appreciated! 

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