Use these options to establish the default settings that Microsoft Office Visio uses for all database modeling sessions until new defaults are set.
Always drop from model
Click to specify that deleting an Entity, View, or Type shape removes the entity, view, or type from the model, as well as its visual representation (that is, the particular Entity, View, or Type shape) from the drawing page.
Drop From Model Only If Last Occurrence On Diagram
Click to specify that deleting an Entity, View, or Type shape removes the entity, view, or type from the model only if no other visual representation of the table exists.
Never Drop From Model
Click to specify that deleting an Entity, View, or Type shape removes only its visual representation (that is, the particular Entity, View, or Type shape) from the drawing page. An instance of the entity, view, or type remains in the Tables and Views window or Types window.
Ask User What To Do
Click to specify that whenever you delete an Entity, View, or Type shape from the diagram, a message box appears asking whether to remove the shape but to retain an instance of the entity, view, or type in the Tables and Views window or Types window, or to remove both the shape and the entity, view, or type it represents from the diagram.
Show relationships after adding table to diagram
Select this check box to display relationships for a new instance of a table that you add to the drawing page.
Show relationships after adding type to diagram
Select this check box to display relationships for a new type that you add to the drawing page.
Sync conceptual and physical names in new tables and columns when typing
Select this check box to synchronize the conceptual and physical names for new tables you create when you change either one in a diagram.
