What are the settings we need to do to see the entity relations from Advanced find?

First, make the relationship visible by customizing the relationship and setting it to “Use Plural Name”. Then save and publish your customizations. However, when setting the relationship to visible it will automatically be put into the Course Form left hand navigation pane. Then, go into the course form and remove the course category item from the navigation pane. And remember to Publish your Customization The end result look the same, but relationship is searchable.