par.dashboard.widget.group.enabled.dashboards.list

ServiceNow property description:

Enables the grouping of widgets feature for dashboards specified by their sys_id values in the "Value" field. This feature is provided out of the box for the CIO Dashboard. To enable this feature for additional dashboards, append their sys_ids to the existing value, separated by commas without any spaces (e.g., sys_id1,sys_id2,sys_id3). Note: If a dashboard is duplicated from one already listed in the value, the feature will be automatically enabled for the new dashboard. If a dashboard (original or duplicated) is deleted, its sys_id will also be automatically removed from the value.