{
	"title": "SCF Button Group Field Fragment",
	"description": "Type-specific properties for button group fields",
	"type": "object",
	"properties": {
		"type": {
			"enum": [ "button_group" ]
		},
		"choices": { "$ref": "#/definitions/choices" },
		"default_value": { "$ref": "#/definitions/default_value" },
		"return_format": { "$ref": "#/definitions/return_format_choice" },
		"layout": {
			"type": "string",
			"enum": [ "vertical", "horizontal" ],
			"default": "horizontal",
			"description": "Layout direction for button choices"
		},
		"allow_null": { "$ref": "#/definitions/allow_null" }
	}
}