Hi Everyone!
i have have almost 37 files all Have chapters in perfect condition,
But all have Chapters titles like

CH1
CH2
CH3
CH4
....
I WANT TO change them in a bulk like.

1st chapter title is 'Intro' instead of 'CH1'
2nd chapter title is 'PartA' instead of 'CH2'


so can someone help me, how i can edit chapter title in bulk {i am usig MKVtoolNIX but i not find any option like that}