As you can see I can only reach eight devices. My setup might not be average in terms of numbers, but I have the following:
TrackIR, Saitek Yoke, 2 x Saitek Throttle Quadrants, Saitek TPM, Saitek Switch Panel, Saitek Multi Panel, 2 x Saitek Radio Panels, CH Pedals, Thrustmaster Joystick, Microsoft X-Box Gamepad. I have more stuff, but that is used at the "pro" simulator setup (Virtual-Fly gear).
As you can see, on a HD monitor with 1920x1080 resolution you can only reach eight devices. Either one need a scroll bar, a drag selection option (just like the way you select aircraft form the aircraft menu), or the devices could be listed as a category in the menu system on the left side of the screen.
