Secondary Progress / Buffered time

I am using this library with react native video. Is there any way to show secondary progress which indicates loaded duration of video? If this is possible how to do it and how to achieve full width slider. I set the width to "100%" but still there is some offset coming from the component itself I guess.

Does thumbImage works for both android or Ios ? It's currently not working on Ios for me.

Need help on these queries urgently. Thanks in advance.