build a clickable url on message field in FMM custom field
In customfields/views/templates/hook/summary.tpl
In line 330, replace the following codes.
<!--<b>{$field['default_value']|escape:'htmlall':'UTF-8'}</b>-->
{if {$field['default_value']|truncate:8:""} eq "https://" OR {$field['default_value']|truncate:7:""} eq "http://"}
<a href="{$field['default_value']|escape:'htmlall':'UTF-8'}" target="_blank"><b>{$field['default_value']|escape:'htmlall':'UTF-8'}</b></a> $
{else}
<b>{$field['default_value']|escape:'htmlall':'UTF-8'}</b>
{/if}