how to add volume level to videojs 7.9.6 - video.js

I have script design with videojs player
in the control bar the volume button only mute & unmute
I want it to show volume level instead to allow for visitor to level up to level down the volume
any help for how i can make this

"Hii #fady-sawairas You can refer to :
https://docs.videojs.com/volumelevel
https://docs.videojs.com/volumecontrol
https://docs.videojs.com/volumebar
this will explain it much better than we can in an answer here.”

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