"there ought to be more than one custom menu, the “fixed” quick actions should be more flexible so that zones can be isolated or have different settings and we ought to be able to edit all these in the app as well as using the Panel."
I completely agree with you, the way I have my "Custom" set means that if I switch to "Economy"or "Away" it increases the temperature in almost half the house,
like you I tend to use "Custom " and "0ff". I foresaw the problem there was going to be with hot water so I did not control that with Evohome
There needs to be more "Custom" settings