Guidance on the repeated slur in \volta 2

[Volodymyr Prokopyuk]

Hello,

Could you, please, provide guidance on how to manage the repeated
slure in \volta
2?

*Problem*

There is no simple and convenient way to repeat a slur in \volta 2, while
the slure from the \repeat volta 2 { body } to the \volta 1 is working
correctly.

*Workarounds*

   - Use the \repeatTie in \volta 2
      - Benefit: simple and convenient, works for chords in \volta 2. The
      not currently existing \repeatSlur would be an effective solution
      - Drawback: the \repeatTie is too small and looks different from the
      desired repeated slur shape
      - Use a hidden grace note with automatic slure in \volta 2 E. g. \once
   hideNotes \acciaccatura { ... }
      - Benefit: good control on the height of the repeated slur
      - Drawback: the hidden grace note is not part of the score, multiple
      grace notes needed to support repeated slur for chords in \volta 2

*Questions*

   - Does Lilypond have an appropriate solution to the repeated slur in \volta
   2?
   - Are there a more convenient workaround different from the above
   presented workarounds that 1) draws bigger than \repeatTie slur, 2)
   supports chords without having to introduce multiple hidden grace notes?

Thank you very much,
Vlad