The MDS Ancillary Defaults form contains the design parameter definitions for all the ancillary support components that can be modelled using design parameters in the MDS catalogue. It allows the administrator to define the physical dimensions of all the ancillaries to match a given vendor. The supplied parameters are generally based on, but not exclusively:

References to the supplier figure numbers are provided on the relevant section of the form. The form also provides material descriptions. The forms allows the administrator to set minimum and maximum design values associated with certain attributes of the ancillary, and contains information used during Material Take Off (MTO) extraction by the MDS Automatic Drawing Production application.

Changes made are only applied to the database when the Apply button is pressed. The Dismiss button removes the form. If changes have been made, but not applied, a window is displayed asking if the changes are to be applied before exiting.