Created a Sku using “Add Another Condition”. How do I nest this condition in the parent Sku?

Hi all!

I’m trying to figure out how to get a sku I created via the Add Another Condition button to appear under the parent sku. I have a parent and a child. We can call them Product-Parent and Item-FBM.

I created a new sku called Item-FBA by going to the Item-FBM sku in inventory management, clicking on the sku hyperlink, and from the Actions column on the next page choosing “Add Another Condition”.

Item-FBA was created without any warnings or errors but it is placed outside of Product-Parent in my inventory management. Why is this? There was no option to make it another variation or have it nest under Product-Parent.

Could I use an Upload File to assign it a variation theme and Partially Update the parent and Item-FBA sku to get it nested without breaking anything?

Any and all information is greatly appreciated! Thank you in advance!