Vertical Scroll only on sub-Rows

[HussainAhmadDev]

how can I show a vertical scroll on sub-rows?
Actually, In my case, I have too many sub-rows I want to maximize their height to let's say 200px

[KevinVandy]

You could make a tbody for every group of sub rows. Every root row could be it's own tbody too.

[HussainAhmadDev]

You could make a tbody for every group of sub rows. Every root row could be it's own tbody too.

I didn't understand the thing is all the rows/subrows have common container the tablebody how can I create an separate container for subrows - should I have to filter out the subrows and them put them in Dom ?
it'll be better if you can give me an example