In MDO a layout is an arrangement or grouping of fields in a desired order to design a form. Layouts act as a user interface form which helps in capturing business process data in a relevant order.
MDO provides a standard layout for Vendor. In addition to the standard layout, custom layouts can also be configured according to the business requirements.
For information on how to add or change layouts, the standard vendor layout, and customizing layouts, please refer to the following links: