Ribbon

Value
Description

CommandUI.Ribbon
Customization appears everywhere for the specified RegistrationId.

CommandUI.Ribbon.ListView
Customization appears when the list view Web Part is present.

CommandUI.Ribbon.EditForm
Customization appears on the edit form.

CommandUI.Ribbon.NewForm
Customization appears on the new form.

CommandUI.Ribbon.DisplayForm
Customization appears on the display form.