Cannot find the Remove Program in new calendar

I'd like to restart a program (delete from my calendar and add it again) but cannot find the feature in beta cal. Can you help me find it please?

When i tried to add the same one to my calendar it said I had it and couldn't add it. It would be great if it could ask "Do you want to start it over?" and do this for me - delete and add the program again - in one action.

Cheers!

Edited