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Continue to ChatSharePoint Modern Lists: Force forms to open in full size https://michelcarlo.com/2019/01/20/sharepoint-modern-lists-force-forms-to-open-in-full-size/
SharePoint Modern Lists: Force forms to open in full size https://michelcarlo.com/2019/01/20/sharepoint-modern-lists-force-forms-to-open-in-full-size/