Dashboard Search also for shared dashboards

As an Admin for SiteCatalyst im asked very often how to find shared dashboards. The people often use the searchbox in the main menu (dashboard/manage dashboards) to find a shared dashboard (see screenshot). But unfortunately the search is just going through the own dashboards. Shared dashboards cannot be searched. As we have a hughe number of shared dashboards it is hard to find something in the whole list.

Please add new functionality to the search box which is marked in my screenshot. An please do the same for bookmarks.