In theatre work, we often need a quick overview of values (espacially intensity) of all (or better, only of all used) fixtures in every cue, so there should be a list, showing one cue after each other, and every value for each fixture. So we can quickly find any change for a specific fixture.

I think what you are looking for here would be something like a “Tracking List” (even though in none-tracking mode it would show all values as they are recorded) ?
Should be similar. First line on top should show “Cue#”, “Dev#1“, “Dev#2“, “Dev#5“, “Dev#8“, so only devices (fixtures) which are used in this playlist.
Following lines should show number of cue, then value (in % or DMX-values) of Dev#1,Dev#2, Dev#5, Dev#8. Maybe “non-programmed” values can be show in a different color or be ommitted, while programmed values should be displayed in an own color. Maybe the field of the value just shows different shades or a bar according to the programmed value (as it is shown in QuickSheets).
Purpose of this list is to get a very quick overview, which device is set to which value in the whole playback. E.G. to quickly find the cue when a spot is going on, or when a fog machine is started.