set ditakeybaselist=URI [;URI]

This option contains a semicolon-separated list of URIs of DITA maps containing key definitions. The keys in those maps are used to populate the Insert Key Reference dialog box and are also used to populate the Keyref field on the various Resource Manager tabs and versions when an object with a matching key is selected. This preference can be updated for a specific document using the Add/Remove Map dialog box. However, changes made to this preference are only persistent if the value is set from the Advanced Preferences dialog box or by using the command itself.

This option has document scope and does persist across sessions.