ENABLE Reference Manual
 RUNNING ENABLE
 ENABLE Commands--Usage Overview
 When you enter an ADD APPL command, ENABLE assumes that you have
 completed your description of the application. ENABLE then
 examines the contents of the attribute table to determine that
 description. ENABLE evaluates the values in the attribute table
 as follows:
 • An override value, if present, takes precedence over a current
 or starting value.
 • A current value, if present, takes precedence over a starting
 value.
 • If neither an override nor a current value is present, ENABLE
 uses the starting value.
 If you do not supply either a current or override value, ENABLE
 supplies a default value for certain application attributes that
 have null starting values. Suppose, for example, that you have
 entered the ENABLE commands discussed earlier in this section:
 SET RECORD parts
 ADD BOX parts-box, DELETE OFF
 SET APPL PATHCOMFILE enabpath
 ADD APPL parts-in, TREE (01 parts-box)
 If you enter these commands, ENABLE supplies the application
 name ("parts-in") as a default value for the TITLE attribute.
 Figure 2-8 illustrates this process.
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