So to make this work like I wanted
Click Menu
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Click Preferences
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Click Keyboard
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Click add custom shortcut
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Give it a name and the command to use. man shutter to find the switch you prefer
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Goto System -> Screenshots and Recording -> Take a Screenshot
Double click on the Print binding and press backspace to clear it.
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Or go to the custom shortcut and let it take it by force.
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You have successfully rebound your print screen key to a non default function.