Hope someone on here can give me some help and advice. l have brought a patio door off someone who lives next to me, l know it's going to fit where l want to put it in ,as he had it there and our houses are the same.Now my question is the sliding door when fitted at his house was on the left which it will be at mine,but l want to put the door to the right.What l want to know is can l move the fixed window panel to the left of the frame so the door shuts to the right.If l can do this how do l do this.