[toltion]

The code allows you to selectively display any extra field. I sometimes like to display the extra fields in different locations on the template, so I run the code at the top of the page and assign variables to the values. In this code I chose to identify the extra_fields by their Service Name instead of index position in the loop -

{section name=field loop=$extra_fields}
{if $extra_fields[field].service_name eq "NO_SHIP_AIR"}
    {if $extra_fields[field].field_value ne ""}{assign var="no_ship_air" value="Y"}{/if}
{/if}
{if $extra_fields[field].service_name eq "CLEARANCE_PRICE"}
    {if $extra_fields[field].field_value ne ""}{assign var="clearance_price" value="Y"}{/if}
{/if}
{/section}

Then I can display the variables "no_ship_air" & "clearance_price" anywhere on the page using {if $no_ship_air ne ""}{$no_ship_air}{/if}.