Android Leanback: How to update nested rows item in RowsSupportFragment

[HamidrezaAmz]

Hi
I am working on AndroidTV app using LenaBack, I have an issue over working with live-data. I am using RowsSupportFragment to show list of categories containing list of movies. Every thing is ok and working, but updating specific item inside content list is not possible!

Here is my question with come code snippet there in stackoverflow

I have checked this repository samples but I can not find any implementation near to my logic!

TnX