Review and make UI for apps consistent

[mjh65]

There has been work in some apps (eg charts) to improve the UI (eg use of mouse scroll wheel for zooming, scrolling) but some of the other apps don't support these enhancements. It would be good to make all of the apps consistent.

First step would be to test and record what is supported where. Currently when I find something doesn't work as I'd expect, I'm usually mid-flight and not in a position to take notes. And then when I'm finished it's time to sleep!