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I would like to know if it is possible to open a source file multiple times in VS2012 Express? For example I would like to open a UserControl in two views (Code/Design) in two tabs to e.g. put each view on one screen (I don't like the split view that much).

I know that I achieved this in VS2010 by using Window->New Window and I had another tab open with the same source file. But in VS2012 this option is always disabled :(

I use C# for development.

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The Window → New Window option is disabled for HTML windows, but I can open 2 different windows for all others (Code Behind, JS, CSS):

enter image description here

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Forgot to say that I use C# for development – Torben Jonas Nov 7 '12 at 12:27
This should work irrespective of language used. – DOM Nov 7 '12 at 12:30

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