connecting FiguredBass figures using extender line

[Kieren MacMillan]

Hello all,

In the snippet below, I am trying to connect a single row of bass figures using 
a continuation line:

    5 — 4 — 3 — 2

I would like to avoid all the hackiness of the solution I’ve come up with. I’d 
like to just use

    test = \figuremode { \bassFigureExtendersOn <5> <4> <3> 
\bassFigureExtendersOff <2> }

or better yet something like

    test = \figuremode { \joinFigures { <5> <4> <3> <2> } },

so that I can be selective about which figures behave like this. What would be 
the best way(s) to automagically achieve what I want here?

Thanks,
Kieren.

%%  SNIPPET BEGINS
\version "2.19.50"

test = \figuremode {
  \override BassFigureContinuation.extra-offset = #'(0.5 . 0)
  \bassFigureExtendersOn
  <5>8 <5> <4> <4> <3> <3>
  \bassFigureExtendersOff <2>2
}

\score {
  <<
    \new Staff { c''4 4 4 4 }
    \new FiguredBass \test
  >>
}
%%  SNIPPET ENDS
________________________________

Kieren MacMillan, composer
‣ website: www.kierenmacmillan.info
‣ email: address@hidden