[Question] Key Binding, Toggle Command (Config Tweaking)

Code:

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Bindings=(Name="ThumbMouseButton2",Command="togglehud")

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I tried adding this command to toggle the HUD on/off with a button to the config file B:\Users\User\Documents\My Games\RedOrchestra2\ROGame\Config\ROInput.ini and adding this bind with the ingame console (by pressing ^-Button).



But it doesn't work for me. I've tried using other buttons aswell. Whats the problem?