With the game closed, open the "Tennis.ini" file in "C:\Program Files\Tennis Elbow 2011" (or the .ini of your current profile, in the "Profiles" sub-folder), and change this line, under [Menu], from :
CtrlExtraButton = 0
CtrlExtraButton = 1
Then launch the game and go to the "Controls" menu.
== Mana Games ==
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