Turns on and off the display of spool identifiers.
Click Show 
to display a gallery of shapes, and then select the appropriate setting.
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None turns off the display of spool identifiers to be suppressed.
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Numeric includes model spool numbers on the isometric drawing. This is the default setting.
-
Alphabetic uses an alphabetic system of A, B, C, and so on.
Defines:
Option Switch - 39, Pos 1
I-Configure - Drawing.Format.SpoolIDType