Left click = LIVE, right click = BLANK (click again to clear)
Tap to cycle: blank → live → empty
Controls (mouse): • Left click a slot to mark it LIVE (click again to clear) • Right click a slot to mark it BLANK (click again to clear) • Middle click sets which slot is the chambered one (green outline) • Next shell button advances the chambered pointer
Controls (touch): • Tap a slot to cycle: blank → live → empty • Long press sets which slot is the chambered one