I THINIK YOU MUST FIRST MOVE THE AXES AWAY FROM THEIR STOPS THAN HIT R THAN MOVE EACH AXES BUTTON TOWARDS THE STOP IT WILL TAKE OVER AND HOME EACH AXES BY ITS SELF FOR EXAMPLE YOU MUST LOWER THE Z TOWARDS THE TABLE THAN HIT R THAN START TO MOVE IN THE POSITIVE DIRECTION AND IT WILL TAKE OVER AND HOME OUT THE Z REPEAT FOR X AND Y