Check Page template ID and show a Placholder
<script runat="server">
protected override void OnInit(EventArgs e)
{
string RNZTimeLineTemplate = CMS.CMSHelper.CMSContext.CurrentResolver.ResolveMacros( "{% CurrentDocument.DocumentPageTemplateID == 488 #%}" );
bool IsRNZTimeLineTemplate = System.Convert.ToBoolean( RNZTimeLineTemplate );
if ( IsRNZTimeLineTemplate )
{
RNZFilterBar.Visible = true;// RNZFilterBar is the name of the placeholder
}
}
</script>