I’m currently working around the missing one-bar repeat functionality by adding the % character as text to a bar, scaling all other items within the bar to zero and moving the text in Engrave mode into the bar (and adjusting note spacing as necessary). It all looks good in Dorico but once I export it to PDF the stems of the notes are still visible.
Also, another thing I tried was changing the color to white but that only changes noteheads, not the rest of the notes. And changing opacity to zero doesn’t appear to do anything.
Is there another way of hiding notes that I don’t know of?