In reading some older posts, I have seen the suggestion that, in order to have a text item appear in one layout but not in another (e.g. the full score), one should open the Properties panel, turn off collision avoidance, and set the “Opacity” to 0. Then to propagate the property. After that one goes to the layout where you do wish the text to appear and reset the “Opacity” and re-check the collision avoidance box.
First, I don’t see a control marked “Opacity” when I click to get the color pop-up. I see that reducing the Alpha to 0 makes the text disappear, but when I go through the editing step of putting things back, everything – score and part – go back to the way they were.
(I’m using 3.5.12.)