I have been able to at times by clicking on the gray arrow on the right edge of the title bar but sometimes the subscribe option isn’t there even though the build isn’t complete yet. Ron Sent from my iPad using The H.A.M.B. mobile app
under the title of the thread on the right side is a button that says "watch thread" just click on that.
Just realized I was reading under the ‘trending’ tab and can’t subscribe from there, thanks. Sent from my iPad using H.A.M.B.