I’ve added two additional tabs layouts – Wrap and Stack:
Tabs layout option
Standard layout is the way it worked before:
Standard layout
Wrap layout retains original tab width and doesn’t try to distribute tabs between rows evenly:
Wrap layout
Stack layout places tabs in a single vertical stack and should be useful when having a separate tabs window on a side of a code window:
Stack layout
The System.Windows.Controls.Panel TabPanel2 property was added to the TabsStudioExt.Tabs class replacing the System.Windows.Controls.Primitives.TabPanel TabPanel property. TabPanel is still present to prevent add-ins that use it from crashing at startup, but always returns an empty panel. I’ve updated Navigator, Saver and Sorter add-ins to use the new TabPanel2 property.
Tabs Studio Blog (organizing Visual Studio document tabs) 