Create file directly in devonthink

Is it possible to create different types of files, like pptx, directly in devonthink?

Third-party file formats can be created by adding templates (see File > Export > as Template…" and folder ~/Library/Application Support/DEVONthink 3/Templates.noindex). Or just duplicate e.g. documents inside DEVONthink.

This is covered in the Help > Documentation > Documents chapter.