Hiding items -- is there a way to set a shortcut for setting the opacity to zero?

[Lillie_Harris]

For this context, you can create a “noteheadless notehead set” and apply that to the relevant notes. It’s worth keeping something in the notehead, even if that’s just empty text spaces, so you can still select noteheads after making them “noteheadless”

Shortcut for hiding noteheads

If you make sure that your invisible notehead design still contains something (such as adding text to the glyph but the text is just a few empty Spaces), you can select the noteheads. If the notehead is literally empty, it’ll look the same but won’t be selectable.

Once you’re happy with your noteheadless notehead set, click the start to save it as default and make it available in all your future projects (you don’t have to recreate it for each project).