More information: Create and edit quick view forms When you have multiple main, quick create or mobile forms for an entity you can assign a form order.The form order determines which of the available forms will be shown by default.
Within the Form editor or from the Forms grid you can assign security roles to a form.
These forms provide the main user interface for interacting with entity data.
More information: Design considerations for main forms Used for the Microsoft Dynamics 365 for phones pages.
Microsoft Dynamics 365 provides many options for designing forms.
The forms for the Updated entities and custom entities provide the most options.