When you make a selection of an event in another window (for example, the Work Agenda) and click the Viewer Focus button, the Viewer will find the asset and focus the drawing area on it.

The Viewer's Lens functionality allows you to start a "mini-Viewer" window that is focused and zoomed in on a selected asset. To start a Lens window, select an asset in the Viewer and select Show Lens from the Viewer's Actions menu. The Lens window will open zoomed in on the asset