Watched this YouTube-video https://www.youtube.com/watch?v=xbNRxExM-sY&t=284s and noticed that there's a "Templates"-tab in the "Assets pane".
What's it for? Is it an EPiServer-feature, something Ectron-specific or an addon?
I believe that is an open source module called Instant Templates: http://getadigital.com/no/blogg/episerver-instant-templates/
Looks like an interesting addon.