How can I disable or control Visual Studio 2010 tab groups?

Question

I seem to have accidentally created Visual Studio 2010 tab groups which means that some documents I open appear in a new vertical tab group. How can I stop this happening?

Answer 1

If you have create two groups, allowing two documents open side by side you can just drag tabs from one group to the other (or use the tab's context menu).

When the last tab is closed or moved to another group the whole group will close.

Answer 2

1. Click mouse right button on one of the tab group bar
2. Select Move all to next tab group