no zoom key edit for vehicle driver

there's no edit option for the zoom function as vehicle driver, therefore in a tank i am currently stuck with the default mouse right-click, meanwhile for all other zoom functions the option to edit the key is available and i don't use mouse right-click

EDIT. Okay i found how to edit, the option is only in 'mouse & keyboard / vehicles / driver zoom', so it's not under the 'edit keybindings' section meanwhile zoom is there for everything else, soo you should add it there too please .. thanks