Be able to remove and replace demos

I don't know if this is just me, but a while ago when I first got CCC, I was only able to make 1 demo (which was expected), but when I wanted to remove and replace it, I couldn't. Even if we're only allowed to have 1 demo on the free version of CCC, a delete demo feature would be nice so we can redo old demos with new skills or voices. Thank you for your time