If you didn't know previously, in Acumatica has introduced new syntax of defining DataViews/Fields.
Previously you have to create a new Form, assign DataView to form and than add there fields.
But now you can use following construction: "DataMember.DataField" right in the DataField property.
Also, a DataMember can be specified as an attribute of a PXPanel, and it will be inherited by all internal controls.
Have a nice development!