Hi there,
I noticed that if I have enabled threaded mode in a folder, Mark thread option appears on right clicking a message in a thread. But if there is no threaded mode for a folder it wont appear

If I am using Theme as Fancy with clickable status then there is watch icon by which I can click to watch a thread.

But if I am not in threaded mode and not in Fancy with clickable status theme, Then there is no way for me to watch a thread.

I guess this should not be the case and Mark Thread option should appear for both cases. Can anyone confirm the behavior?