Quick ? reguarding Flagrant T

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3 bench players leave the confines of the bench when a fight breaks out, or MAY break out. Now these three players are bench personell and any Flagrant techinical fouls are charged indirectly to the head coach corret? Now if this is correct do you have 1 indirect T or 3 and the coach is ejected ive asked sevreal people but for some reason cant get a clear answer.