|Note that the entries below are virtual corpora created in the Wikipedia corpus and that the columns might be slightly different from what you see, but the same principles apply to your virtual corpora.|
[A] Rename your corpus
[B] Delete the selected pages from your corpus.
[C] Add the articles shown below to the corpus shown in [E], but don't delete them from the current list, or [D] move the articles shown below to the list shown in [E] and delete them from the current corpus.
[E] The name of the list to add to or move to.
[F-G] Select below the number of articles shown in [G]
[H] Number of words in the list
[I] See a page with the list of articles that link to this article in [K], or [J] see a page with the list of articles that the article in [K] links to. On that page, you can create another corpus from those links.
[K] Click to see this page in Wikipedia.
[L] Individually select pages to delete from your corpus, or to add or move to another corpus.