Related Pages: multiple pages in collection

Hi,

I have child pages under two different parent pages. I'd like to receive related posts from both of these parent's children. @page: /mother or @page: /father limits me to only one parent, @self.siblings gives me posts only under the active parent, and @root isn't supported. Is there any way to add multiple pages in the collection?

Cheers,
Eetu

Actually I thing @root will work as that was added to collections after relatedpages plugin readme was written. However, if it's not (untested) you should be able to use @taxonomy

I already tried @root yesterday without luck, but gave it another try now and got it work! The mistake I made earlier was using @root.children, but actually @root.descendants was required. Thanks for the guiding!