Add option "Reset rehearsal marks for new section" to section breaks

Your idea

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Problem to be solved

If you have alphabetical rehearsal marks in a score with multiple sections, the "Resequence rehearsal marks" command doesn't seem to know about the sections, it creates a continuous sequence spanning all sections. If you want each section to start at "A", you have to set that up manually and need to always select the corresponding range before running the command.

Prior art

There's already an option to reset measure numbers. It seems only logical that you could reset the rehearsal marks there, too.

Additional context

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Checklist

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Start by locating the section-break handling, the “Resequence rehearsal marks” command, and the existing “reset measure numbers” option. Trace how section boundaries affect rehearsal-mark sequencing and how the option is exposed in the interface. Done means users can enable the option so each section starts its rehearsal-mark sequence at A.