Demanding

Morning all,

Hope everyone is well. My son was diagnosed this year with Autism. I wanted to ask for advice. Lately my Son has become demanding, example, if I sit down he says no mummy over there and makes me move, he does this with everyone, tells them where to sit and demands they move to the place he picks. He has also started to tell me what to say, so if I say its bed time now, he says "No Mummy say bed time" and he will repeat this untill I say ok. Also if I tell him to be careful when his playing or tell him to calm down, he gets very upset and angry, he says NO MUMMY SAY CALM DOWN'

is this behaviour part of ASD? He is very demanding and comes across as controlling. He is 5.

Thank you xx