HOW TO TAG PEOPLE IN THE THREAD?
Like on Facebook comments, when you want to hear back from the specific person. Does STM has something similar? 
Yup, we do have that, use an "at" sign ... like this : @manworks 
And check this thread for more details on how to use this function: https://stmforum.com/forum/showthrea...e-user-tagging
Thans 