Originally posted by grapplehoeker:

https://steamcommunity.com/sharedfiles/filedetails/?id=2432292400
As you can see, zoom +/- are assigned to , & . on the keyboard, and so they are bindable.
So, with a Steam controller I can reassign those to whichever buttons I wish.

it's "zooming" minimap in the right top corner
I think the OP wants zooming on map? (unless it works on map too, didn't try it)
(you can't zoom with bow if that's what OP wants?)

welp we won't know unless he tells us ;D