When I open a new doc, its tab label appears on the left side of the bar. How can I make it appear on the right?
To instruct Visual Studio that you want new tabs opened to the right of existing tabs:
In Visual Studio 2015, this option has been moved to Options --> Environment --> Tabs and Windows.
In Visual Studio 2017 is the same like in Visual Studio 2015. Tools->Options->Environments->Tabs and Windows You mus check "Insert new tabs to the right of existing tabs"
For Visual Studio 2012 and later, this setting has moved to the "Tabs and Windows" section.
Updated directions are: