I have just puchased a now home which has patio doors with multi point locking on each, however to lock the door I need to both lift the handle and then turn the key. As I suffer from arthritis it is dufficult to turn the Key and as I use these doors to access my garden I want to be able to use a single method of closing, locking and then opening, does such a lock/handle exist if so where can i buy it . My local Ba nd Q and locksmith have nothing and know of nothing.