{% for entry in mapping %} {% empty %} {% endfor %}

A Connector	A Position		B Connector	B Position	Label
{% for i in a_connector_range %} {{ i }} {% endfor %}	{% for i in a_position_range %} {{ i }} {% endfor %}		{% for i in b_connector_range %} {{ i }} {% endfor %}	{% for i in b_position_range %} {{ i }} {% endfor %}
Set connector and position counts above to generate a mapping.