The same way you'd re-order items in a collection widget. It'd be a time saver.
Are you referring to when you're setting up which fields to show under which tab for an app item?
Yes, the fields. When creating a content layout it can be a chore if you have to reorder fields by clicking 'change position', then choosing first, before, after, etc. and then choosing another item if you want before or after.
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