This panel is available from the Trace button in the Tools menu of the Tool Control window. It provides a listing of the ``debugs'' (i.e., traces, breakpoints, interactive plots) currently in effect. These ``debugs'' are set with the save, stop, trace, and iplot commands. A debug can be made inactive by clicking on the text in the list, in which case an `I' appears in the first column. Click on the text a second time to restore activation. Inactive debugs are ignored during simulation. The following buttons are available: