If you have a custom Layer Key Style that is built on a custom Layer Standard, best practice is to establish a source file for Layer Standards and Layer Key Styles, such as the out-of-the-box AecLayerStd.dwg, that includes your customizations. Then, using the AECDWGSETUP command to open the Drawing Setup dialog, on the Layering tab you can specify that file as the source file for auto-importing your Layer Standard and Layer Key Style and also specify your Layer Key Style in the Default Layer Standard area.
If you save that as your default, it should get your Layer Key Style and Layer Standard into a drawing file. But if you have multiple Layer Standards, or have not set that up, it is important to note that while you can use the Style Manager to copy a Layer Key Style from one drawing to another, doing so does not bring the Layer Standard on which that Layer Key Style is based along for the ride. Without the Layer Standard, Layer Key Overrides will not work (assuming that your…
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