Polychord support

[skoop007]

Hello,

is there meanwhile an easy way to write polychords as a chord name? I found a 
request on this topic, but no working solution.

"Polychord" means that two chords are layered on top of each other and 
separated by a horizontal line. For example D major (d - f sharp - a) on top of 
C major (c - e - g ).

Here are two examples from my work:
1) "Bb on top of Ab" (= a flat - c - e flat - f - b flat - d ). I deliberately 
don't want to notate Ab maj7/#11.
2) And this one: "C on top of C#m/Ab" (= a flat - c sharp - e - g - c).

It would be great if there was a workable solution for this by now.

Many greetings