16. How can I show content after the first post in a thread?
<xen:if is="{$post.position} == 0 AND !{$message.conversation_id}">
This content will show after the first post on the first page only
</xen:if>


17. How can I show content after the first post on every page in a thread?
<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == 0 AND !{$message.conversation_id}">
This content will show after the first post on every page
</xen:if>


18. How can I show content after post x on every page in a thread?
<xen:if is="{$post.position} % {$xenOptions.messagesPerPage} == x">
This content will show after post x on every page
</xen:if>
---- thread_view