ActionsHeader
Returns true and will output the content it contains the first time through the loop created by the Actions
tag.
Example
<mt:Actions namespace="community_pack_recommend" include_blogs="all" sort_order="descend" lastn="30">
<mt:ActionsHeader>
This will appear once at the very beginning.
</mt:ActionsHeader>
This will appear once for every action.
</mt:Actions>