Trying to total something... it should be an easy thing to achieve, but it's not. Should have taken me five seconds, so far over an hour and I'm still looking for the answer.
My main issue with the Report Designer is that functions won't work - they underline in red. Help is useless too, it tells you how to add a function. I know how to do that, that the easy part. It's making it work that's the issue!
I feel that lots of things could be made easier and simpler but that is just one example of where there are issues.
What is missing is a guide to using Report Designer and how to get it to do things - we should not be relying on third parties to create the documentation for the product supplied to us.