Tracer should be useful for add-ins development. Using System.Diagnostics.Trace.WriteLine method it traces when
ITabsStudioEngine events occur. I use DebugView to view these traces.
Tracer also demonstrates use of the TabsStudioExt.IConfigurable interface showing settings dialog when Configure… selected in Add-in Manager. These settings are not preserved after closing Visual Studio.
Download Tracer v1.0.0 for Tabs Studio v1.5.5.
Tabs Studio Blog (organizing Visual Studio document tabs) 