MP4Box : How to fragment a MP4 video to have mfra atom

[debatkol]

I am a frequent user of MP4Box. I have a requirement to create a fragmented MP4 where "Movie Fragment Random Access" (mfra) atom will be present.
I tried MP4Box -sync 100 -frag 100 <input_file> -out <output_file> command.
But, it does produce a fragmeneted MP4, but mfra atom is not present there.

Can anybody please let me know, how this can be achieved.

Another query is, whether there is any player available to play fragmented MP4 video.

Thanks.