What is the correst usage for 'ButtonOrder"?

Trying to setup a Kensington Expert Mouse (11.0), and the button order is wrong - it should be ‘3 4 1 2’. I have tried selecting each PS/2 driver, and each ‘rejects’ a “ButtonOrder” clause in xorg.conf (starting Yast2 after inserting the clause causes it to disappear).

> Does anyone know which driver will accept a “ButtonOrder”?

> Is anyone using one of these mice & could share a config with the proper button order?



Posting for posterity:

xinput set-button-map <device ID> <button ID> <button ID> …

Ha you answer your own question 7 years later.