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Expression Value: Automatic _bAuto&
Expression Element: Built-in Properties
Automatic
Was the topological item automatically created? Automatic topological items may be automatically deleted in future when associated items are edited or deleted.
Expression Syntax: _bAuto&
_bAuto& returns -1 (True) or 0 (False)
In the Properties dialog go to the All tab, select Automatic and select True or False from the drop-down box.