Mouse wheel assign keybind

I would like to set my mouse scroll wheel to move forward and backward, based on scrolling the wheel. When I go to Keybind and the alternate “Move Forward” and “Move Backward”, I move the mouse wheel, the keybind is is recognized “Scroll Up”, etc.
However, actually moving the mouse wheel does not move my toon. Can it be done ?

The binding itself aside, the mousehweel doesn’t have a traditional down and up event. It shouldn’t be used for any “runOnUp” behaviors like movement.

When the W key goes down you start moving.
When the W key goes up you stop moving.

When the mousewheel scrolls you start moving.
…and you never stop since there is no up event.

Mousewheel is allowed to be bound to stuff (I have it bound to actions to easily use on the move), but it shouldn’t be bound to “runOnUp” stuff that starts when the key is pressed and stops when the key is released; because mousewheel scrolling doesn’t have a separate down and up state.

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