If SL is sell long, the tagging of the hedge has nothing to do with your option position. And, most future’s platforms don’t require you to tag a future’s order as long or short as their is no borrow. That said, you need to ask your broker about that part.
I mean just as a general trading strategy rather than a requirement by the platform or dealer. For example if I buy 1 ES contract and have a put to hedge the same, do I still need to have an SL order ? (Because typically traders are advised to have a SL as a standard practice when trading)
I am trying to check a strategy hence the question. Is SL essential when I have a put (not from anyone requiring me to have it, but as such) ?
Essential. Maybe. If the Put is OTM, you still need to decide the most you are willing to lose on any one trade. The answer is very subjective. I would prefer to buy a call, vs Future + Put, as the net is the same, but there is only one commissions and a positions that is easier to manage. Your risk is then limited to the value of the call. Put + Future is the same but harder for many to visualize. You seem to think there is one answer. Trading is not that simple.