Hi!
Yes! You can easily do this without the hardware - even with the free version of Widget Designer!
I've created one fader and attached it to "Site 2" "Layer 1" - you can set this on the "Devices" line.
I've set the maximum of the fader to 159 - which is about 200% (or double) the playback speed.
You can adjust this max and the minimum as needed so you won't go too fast or too slow using this fader.
fader-speed control.png
I hope this helps.
Also, the helpfile has quite a lot of great info on how to use Faders inside of Widget Designer.
That page can be found here:
https://www.coolux.de/root/downloads/support/Documentation/Helpfile/#fader.htmLet me know how it goes!
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