Whenever I move an object in blender in unit mode(Imperial), it always make it in feet. For example, if I type G Y 12, it will move 12 feet. How can I make it move 12 inches instead?
When performing any action (such grabbing) that has a number input during the modal operator; you must first press = or NumPad * to enable advanced input for the units.
By default the number input for the modal operators is set to simple, that is why typing in any units after the value does not work.
I would highly suggest everybody reads the release notes for the number input feature