Second order child on Mail Merge

Hi there

Usually, we works with two views to execute a mail merge: vMailMergeOrders and vMailMergeChildrenOrders. I've creates a new custom child entity, called Planning, and I need to include on a mail merge. I've "n" childs for each orders, so I need a third view, e.g. vMailMergeChildrenOrders2. Is something like that possible??

Thanks on advance,,