If you import contents from title A to title B, where some of the titles already exist in title B, it should be able to import the page numbers. The import method recognizes when some of the titles being imported already exist in the title being fleshed out, and ignores those imports completely. But, it would be better if the more fleshed-out title had the page numbers missing from the less complete title if those page numbers were imported (when the "page numbers" check-box was selected, of course.)
Anonymous
I was mistaken on most of this. In fact, the import command does NOT recognize that some titles are already in the less complete title. So it imports all of the titles, leaving duplicates of those titles that were already there. Those duplicates do not show up in the bibliographic listing, but do show up if you try to edit the title. And, oddly enough, while it does have the page numbers of the imported titles, they're not shown, because the system only shows the entries for the previously existing copies of the titles, which DON'T have page numbers.
This upgrades this from a "feature request" to a "bug". It really shouldn't be putting duplicate title recs in its contents.
Fixed in:
Installed in r2014-64 on 2014-01-25. Closing.