It would be great to see a 'mute' feature in Discover, where instead of deleting the dimension or metric you could simply mute it / or turn it off or on. This would also keep multiple tabs to a minimum depending on the granularity you are modeling or butchering.

Discover is such an awesome program, I cannot believe how aweful, terrible and horrible the reporting output is. Please update this or allow the ability to customize exported reports from Discover please.