The Synth tab has a preset bar at the top: a dropdown showing built-in and user presets for the current synth type, plus a Save button.

Built-in presets

• ACID: Classic Acid · Deep Bass · Squelch Lead · Broken
• WT: Warm Pad · Hollow Bell · Fat Saw · Glass Pluck · Drone

Saving your own

Tweak the synth knobs to taste, click Save, and name the preset. It appears under a "User" group in the dropdown and persists in your browser's localStorage. There is no cloud sync.

Auto-rename on type switch

When you change a track from sampler → 303 / WT, if the track's name was the original default ("kick", "snare", etc.) it's auto-replaced with the first built-in preset name for the new type. Custom names are preserved.