How to display custom fields in the listing view
Create Field Group
Please go to Admin > Content > Field Group > Add new.
Create Custom Fields
Go to Admin > Content > Fields > New > Create a new field. And assign it to a field group.
How to display the custom fields in the listing view.
You can edit each custom field, in the Options tab, you can see the "Automatical Display" option. Choose one of below options:
After title:
Before display content
After display content
Do not automatically display
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