Fine adjustment controls

Hi, it could become easily frustrating when it comes to do really fine adjustments using control sliders on Maestro screen, like setting black intensity display control and all other sliders control on the Maestro screen. Could it be possible to consider adding a + and - sign at « some » of each ends of sliders to let users to do fine adjustments..... or any other solution that could let users to do fine adjustments. A single small step too far or to low is already to easy to do, and could become very frustating. We must admit, by not using a mouse or any kind of pointer, unless one finger, it is harder to be very precise on a small screen. Thanks to consider the idea. 73 de Jeff | VA2SS