Advanced slider uses

Is it possible:

  1. to remap a slider value - so that one slider can control different parameters using different ranges?
  2. to access the slider value in hydra - to get visuals that react to the slider?
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1: Yes that’s possible. Here is an example where you can control freq and q of lpf with one slider. Note that slider returns a value between 0 and 1 which is then passed as x to the myfilter function.

source: https://www.youtube.com/watch?v=AifAIqHezb8 where she defines an "acidenv" filter similarly.

Thanks. That’s not exactly what I had in mind but I am quite happy to learn that still.
I was thinking more about controlling parameters for a mix tidal/hydra (though don’t know if it’s possible), or maybe multiple sound sources.