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Type: Integer
Saved in: Registry
Initial value: 1

Controls whether a drawing file can be worked on before it is fully open.

Two conditions must be met for this system variable to have an effect. The drawing must have been saved with paper space displayed (TILEMODE is set to 0), and the INDEXCTL system variable must be set to a non-zero value.


Legacy behavior: A drawing must be fully opened before work can begin on it


Work can begin on the visible portions of a drawing before it is fully open