The full-document-preview functionality of the Ontolica Preview Web Parts is enabled by default. This feature can be modified via the Ontolica Preview Front End Configuration pages in the Central Administration for an entire farm, individual Web applications or even separately for each site collection via the Site Settings page of site collections. To make changes for this functionality, go to the Ontolica Preview Front End Configuration page. Click the Full Document Preview link and select the Enabled Content option. A closely related option is to allow users to open multiple preview panes simultaneously, which is very useful feature to visually compare documents side by side. To enable or disable this feature, open the Preview Pane option. Note: opening too many preview panes simultaneously will decrease the browser speed.