My temp fix is using an autohotkey script and some predefined keybinds.
Set your settings as shown above
Install autohotkey, then create a new script, paste this in:
#IfWinActive, ahk_exe Last Epoch.exe
$RButton::
Send {RButton Down} ; Send the right mouse button press
Send {= down} ; Simulate pressing '=' key down
KeyWait RButton
Send {= up} ; Release '=' key
Send {RButton Up} ; Release the right mouse button
Return
#IfWinActive
Save it, execute it, enjoy.
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