I love those plants. The one I had flowered it's socks off over a long period then died. I can't advise you on cuttings because I haven't tried but I hope you succeed.

Possible - they are actually perennial by nature, but usually grown as annuals because they're frost sensitive. I'm guessing they might need a rest period though, if they've been flowering continuously, but I don't know that for sure.

Thankyou both , I will give it a try. I have already trimmed them right back so they can have a good rest before the spring. Taking the cuttings from the Senettis was simple and I have come out 100% success so I have achieved already. I will post a progress report later.