Seamless makes lists that mix items from several modules, as if they were one. For example: the newest videos from Video, YouTube and Vimeo together, or audio and SoundCloud tracks in one list. Any module that stores items can be included.
ACP > Modules > Listing > Seamless
Add the Item List (Combined) widget to a Site Builder page and choose the modules. Or use the template function, which works like jrCore_list but takes several modules. The 3 newest videos, from either YouTube or Vimeo:
{jrSeamless_list modules="jrYouTube,jrVimeo" order_by="_created desc" limit="3"}Lists items from several modules as one list.