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"