I can't seem to turn Ideas on my Mac. I've got the most up to date version and am a 365 subscriber. But the lightening symbol that the help is suggesting isn't coming up on my home ribbon but I can see it there when I'm in preferences. Can someone help me start it please?
So perhaps you need to update your Office. Depending on your company policy this may or may not be something you can do yourself. Also, your IT dept may have set Office on a delayed update schedule, which means additions like these will arrive (a lot) later for you.