Disable CTRL + ESC

Disable CTRL +ESC please it's unplayable. I crouch to open inventory and the game tabs out. How can you forget about the existence of such windows hotkey while developing a game that has crouch on ctrl and even slides???? 

There is no way to change the button that gets you out of inventory, and i even tried to put the inventory opening on mouse button but even if it's written "toggle" in the settings it's not. you have to press ESC to get out. While you are in inventory if you crouch and press esc it tabs you out.