sound edit - access all parameters for the selected pad's sound

enter sound edit:
[altero] + [sonus] (with a pad selected)

pages (navigate with [-/+]):
- SND: play mode (one-shot/key/legato) + stereo pan
- TR: trim start/end points
- EN: envelope (attack/release)
- TIM: time stretch (sync sample to tempo)
- MID: MIDI output channel and root note
- GRP: mute group assignment

quick adjustments (sonus mode, no altero):
- x-knob: sound volume/level
- y-knob: pitch (tune up/down semitones)

for fine control:
hold [altero] while turning any knob

browse samples:
in [sonus] mode, [-/+] cycles through sample slots (001-999)
hold [altero] + [-/+] to jump by 10 at a time