Add Expand/Collapse All to Toolbox Panel's Context Menu
When I open a large solution which have many toolboxed items (a WF4 based solution for ex.), Studio shows Toolbox Menu items in expanded state at default. If I have quite many namespaces, this is a pain to collapse'em all by hand every times when the solution opens.
bohuang [MSFT] commented
just like regular tree control, pressing key * would expand all toolbox tabs and key / would collapse all tabs.