I’m pretty sure this isn’t possible, or if it is, I can’t figure it out either, sorry! The ability to specify both the Primary and Subordinate either in the Add Bar Number Change or the Properties panel would make a good feature request. As of now I think it’s just one or the other.
In the meantime I suppose I would just add them as text if left-aligned, or perhaps as a custom line if centered.
We would like to prepare a critical edition that follows the convention of not counting the measures that comprise the second ending in a section – e.g. A part is 8 measures, with first and second ending of two measures each, first measure of B part should have be numbered “9.”
currently in Dorico, the first measure of the B part would have the number “11.”
I don’t know a manual work around for this problem, and even if there is a cludgy workaround, I dread having to implement it consistently by hand across hundreds of tunes.
Thanks for the tip. I’d like to add this as a feature request - especially since the issue was first raised in 2021. Even with the shortcut key command, it is still be a manual process that can’t be included in a template.