Mouse macro to other devices i.e:game controllers

Hey, Long time since I've been here. How is everyone doing? To the point: I broke my Deathadder a while back, I mean, just the left click but that's pretty crucial. So I used the left of it to build an E-brake for my driving setup, now that it's ready and "working" it doesn't work with Forza, because Forza doesn't let you combine multiple devices in custom binds. So, I figured; could it be possible to change the middle mouse button from DA to act as a any device button, in this case one of my wheel buttons? I mean, it should be possible(?) you can change it to keyboard keys so why not other device key? Or to just create a macro for it. Currently macro recording doesn't respond to wheel keys (synapse 2) thanks! Peace! TL;DR: I need to bind the "middle-mouse-button" from DA to act as a "Joystick-7"