The Diagnostics Console can save logs from multiple tabs to a single log file. When you open one of these files in the Log Viewer, you may want to close some tabs to display only information relevant to the issue you are researching.
To close a tab, select the tab you want to close and do one of the following:
Select View | Close Tab.
Click Close Tab from the Log Viewer's main toolbar.
The selected tab is removed from the Log Viewer.