Thanks for the answer. Yet :
For instance, slash regions hide notes automatically - they’ll still play back but won’t be visible.
My problem is that I want to have a staff with slash region + rhythmic cue notes on top but also writing chords but setting them as hidden in the only purpose of playback (so when I send the demo to the musician I want them to hear chords in place but that they only see slash + rythmic cue in the score, I hope I’m clear).
Playing Techniques (that can be visible or invisible, on a per-layout basis) trigger Playback Techniques that can (via Expression Maps) trigger key switches.
I don’t like expression maps, I prefer using keyswitches (old habit from Cubase I guess). I would really like to be able to choose my favorite way of programming playing techniques.
It’s possible to define a notehead set with noteheads that are a couple of text spaces, then use that notehead, then use the Hide Stem property in the Engrave Mode properties panel, but do get specific about what it is you’re trying to achieve as there may well be specific functionality that’s less workaround-y.
That seems very complicated and time consuming. Again, to me it would way much simpler to have the liberty to hide anything in Engrave mode.
In addition to my problem of hidden chords in a slash region+cue my second goal is to create exercises for students with only a few notes in the score so they write the missing ones. But I want to easily change witch ones are hidden according to the level of the exercise.