I'm trying to display 'Item Groups' that are linked to Customers to display on a sublist on the customer record. I created an item Saved Search with 'Publis' and 'Available as Sublist View' marked. I can't seem to find the saved search on the custom Sublists tab to add it to the entity. Any ideas or things to try?

You need to create a Custom Sublist that will use your search, checking the Available as Sublist View on a search does not automatically creates a custom sublist for you.

Interesting. I thought you could do inline editing when going into the list of sublists, but doesn't seem to be the case. Your solution worked. Thank you