Parameter Groups

Use the group option to organize parameters into sections in the sidebar panel. This has no effect on execution — it is purely for display.

Usage

function define(ctx) {
  // Indicator group
  ctx.param('fastLength', {
    type: 'int', label: 'Fast EMA', default: 9,
    min: 5, max: 50, step: 5, optimize: true,
    group: 'Indicators',
  });
  ctx.param('slowLength', {
    type: 'int', label: 'Slow EMA', default: 21,
    min: 10, max: 200, step: 10, optimize: true,
    group: 'Indicators',
  });

  // Risk group
  ctx.param('stopMultiplier', {
    type: 'float', label: 'Stop ATR Mult', default: 2.0,
    min: 1.0, max: 5.0, step: 0.5, optimize: true,
    group: 'Risk Management',
  });
  ctx.param('useTrailingStop', {
    type: 'boolean', label: 'Trailing Stop', default: false,
    group: 'Risk Management',
  });
}

Result in the UI

The Parameters panel groups them under collapsible headers:

• Indicators — Fast EMA, Slow EMA
• Risk Management — Stop ATR Mult, Trailing Stop

Tips

• Parameters without a group appear under a default "General" section
• Keep group names short — they display in a sidebar panel
• Consistent naming across strategies helps when switching between them