My projects consist of a package of DWG's usually in the 12-15 count range, each with a single layout. I have a layer that is used as an overlay watermark for 'PRELIMINARY' sheets. I'm wondering if there is a way to dynamically show/hide this layer based on a custom project property or some other 'batch' means. Currently, i have to open each layout separately within the project and show/hide that layer manually. Or maybe another suggestion for marking sheets as preliminary within the project itself instead of via a layer? Any help is appreciated. Thanks.