How do i add a swing button in my custom library?

Hey there! So, it sounds like the library you're talking about uses a midi groove player to trigger those pre-made rhythms. This midi groove player might involve some pretty advanced Kontakt scripting, especially if you're just diving into scripting now. Trying to explain how a swing knob functions (in KSP) might be a bit challenging in a few quick comments.

You could potentially craft your own guitar rhythm library using the Arpeggiator factory script included with Kontakt. While it might not mirror the exact functionality of the library you mentioned, you could adapt your workflow to align with that script, which includes a swing knob feature. However, if you're aiming for results identical to Electric Sunburts libraries, creating a MIDI groove player would be necessary. In that case, I'd recommend exploring Studio Drummer or any of the Abbey Road series libraries, which provide open scripts for more in-depth exploration. Cheers!