Control if you want your XREFs to retain the visual changes or not.
Català - Castellano
Sometimes we change colors of the layers of an XREF for different reasons. Eventually we might want to get the layers to they original state. If we inserted the XRef on 0,0,0 coordinates and didn´t move it, scale it or clip it, we can just detach it and attach it again.
But in many circumstances we might have moved, clipped or scaled the xref, so we don't want to do that again. If we want to get the layers to they original color, we can use the command VISRETAIN. This system variable controls whether the changes made to XREFs are retained or are only temporal. If the variable is set to 1, the changes are kept, if we set it to 0, reloading the XREF will bring back the original colors.
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