The mouse I was refering to was locally designed & made & was not that much larger I suppose. But was larger than many made at that time. Well, ... as explained the menu exists. Just need to find it. Just like the buttons on the mouse. Perhaps the menu could be advanced more but that's for developments to come .. should it become a popular request. Physio .. like exercising the wrist using the mouse sometimes. Build up the strength in 'your' favoured hand.