Keybindings for left handed

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Hi, I`m left handed player and all my keybindings on right side of the keyboard. I tried to change default keybindings in InputUserMappings.xml file and succeed with most of all them. Would you mind to tell me how correctly to change keybinding "R" - Non Lethal take-down and "R" pick up dead body to Mouse 4/5 or NumPad5/NumPad6? I tried it, but or it`s not working or game is crashing on Main Menu. Plus description of keybindings in inputUserMappings looks like for gamepad not for keyboard. I don`t know correct commands to write and replace it.
 
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