Modifying external datagroup within an irule

@player: I'm sorry for not following up when I saw your question originally!

I ended up creating a sub-table off of the session table that I stored the user's preferences in to allow for a "master" preference that would follow them across devices. I modified this irule (Session Table Exporting) and exported the user's information for our marketing team. We're also switching now to all internal datagroups to ease the manipulation within irules and for the use of iControl from an external application.