Neil is talking about gamepad controllers like DS4, Xbox One or 8bitdo (which is what the controller options in BigBox are for). BigBox does see two controllers, but it does not differentiate between Joy1 and Joy2. Those devices you named such as X-arcade and I-Pac replicate keyboards so yes they have more buttons, but it is seen as a keystrokes. Ipac and Xarcade have trimode options, but once you flip either one to, say Xinput, it now acts as I mentioned true gamepads do.