Feature request 1: Add shortcut function to enable Position speed to be adjusted

Feature request 2: Add shortcut function to enable Move speed to be adjusted

Feature request 3: Add shortcut function to enable Zoom speed to be adjusted

Reason:
Currently the only way to adjust these is via using the mouse to adjust the sliders on the PTZ setting dialogue.
By having shortcuts for these the speeds could simply be adjusted via keyboard keys, Midi or Game controllers, without having to open onscreen dialogue boxes.
Altering the Move speed is particularly useful for fine adjustment of 30x cameras working at maximum zoom.

Enhanced option:
Allow a Game controllers analogue joystick to be used to control these speeds - this would require a "sticky" joystick that stays in position and didn't return to centre.
Custom controllers could then be build using Ultimarc (https://www.ultimarc.com/control-interfaces/u-hid-en/), or similar, U-HID controllers with the simple addition of a potentiometer