I want to create a collection, and not finding an easy way to select multiple resources, I brought of the resources entitled "wesley's notes" to the prioritize list under the library. That created an entry for Wesley's Notes, 66 volumes.
Next, I (and this needs work too) found a way to open the collection creation window on the right side of my screen. I opened my Wesley collection, I then opened Library on the left side, opened the prioritize option, grabbed the newly created Wesley's notes 66 volume entry and tried to drag it over to the commentary include box.
et voila - system crash.
file attached.
You make 'em, I'll break 'em 
Dale