dynamics and pedal as separate "voices"

[Robert Blackstone]

Dear list. 

For my pianoscores I use a "dynamics voice" (\new Dynamics = "dynamics" \dynamics) and a "pedal voice" (\new Dynamics = "pedal" \pedal).

On the whole they work perfectly but compared to dynamic marks attached to notes I find their possiblities a bit limited.

The same goes for the pedal marks.  

As for the dynamics I would like to use it also for other expressive “instructions” like “p dolce” but I have no idea how to accomplish this in \new Dynamics = "dynamics" \dynamics.

As for the pedal marks I would like to use the “mixed” style and occasionally the “bracket” -style but again I have no idea how I can make “\new Dynamics = "pedal" \pedal” do it.

Thanks in advance for any advice.

 Best regards, 

Robert Blackstone