This section of the General tab of Publication Properties is specifically for developers working with Digital Workshop on corporate branded versions of Opus locked to work with dedicated presentations. It is disabled until the appropriate White Label licences have been purchased.
Basically the feature combines with the Permissions settings and allows you to sublicence versions of the Opus Editor to permit limited editing of specific publications. It is being provided as a solution for companies (for example, those with large sales teams or an authorized dealer network ) to provide sales/training/presentation materials which can be partially edited.
If you are interested in sublicencing Opus under the Opus White Label program for providing major corporate clients with dedicated sales/presentation/training solutions on a value-added basis please contact sales@digitalworkshop.com.