Detach the help window
By default, context-sensitive help opens in a window next to the code editor when you press F1. If there is not enough vertical space, the help opens in the full-screen help mode.
To specify that the help always opens in full-screen mode or in an external window, go to Preferences > Help > General.
Set preferences for viewing context-sensitive help in On context help. To detach the help window, select Always Show in External Window.
To change this setting in a help view, select 
.
See also How To: Read Documentation.
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