Mouse.ini -

[ui-buttonmap] a=BTN_LEFT — Maps the 'A' button to a left mouse click. 3. Input Overlays for Streamers

In Bethesda titles, "mouse ini" changes are often part of larger files like SkyrimPrefs.ini or Fallout4Custom.ini . Players frequently create or edit these to: mouse.ini

Setting bMouseAcceleration=0 to ensure a 1:1 movement ratio. [ui-buttonmap] a=BTN_LEFT — Maps the 'A' button to

If a game or application cannot save your mouse settings, the .ini file may be set to "Read-Only" in its properties. mouse.ini