A:AnswerNot adjustable in being able to move shelves to different heights as that is fixed. They mean the shelf can be removed giving more height for a lower shelf.
A:AnswerGo to control panel. Press LOCK for about 3 sec. to unlock control, then press ICE MAKER to switch off.
Or are you trying to shut off the water supply line? In that case there should be a valve in the plumbing before the flexible line goes to the refrigerator.
A:AnswerThe Owner's Manual (supplied with the refrigerator or available online) has instructions for removing the doors. My refrigerator even came with a thin wrench to adjust the hinges.