I'd love to see Logos reading plans have the ability to generate a plan for a whole series or set. For instance, it'd be great to have a reading plan to take me through a set of commentaries I own. Does something like that already exist?
You can use a custom reading Plan to combine (normal) reading plans for different books. You can overlap start dates for sessions on more than one volume, or end-to-end the sessions. But I'm not sure that Commentary Reading Plans even work.