How can I add a block to a HTML page created, for example, in WF-Section?

ISSUE: I create indivdual pages in WF-Section, or WF-Channel, and on top of these pages I would like to add a "Recent Articles" or "Recent News" blocks, or some other block.

How could I achieve that?

In the standard block administration, I can add blocks only to modules displayed in the "Visible in", but there are no pages created in modules like the WF-Channel.