I’m trying to achieve the following bar numbering style, where bars in a first ending repeat are marked “a”, and those in the 2nd ending have “b” for the same numbers. (Gould, p. 237.)
If I create a Bar number change with a ‘subordinate’ a,
then I get 85a, 85b, 85c, 85d, … etc.
If I want 86a, 87a, 88a, … followed by 86b, 87b, 88b for the 2nd ending, it seems I have to create a bar number change for each one of these bars.
Is that right, or have I missed something?

