When working with [[zettel|00001006000000]], you could work with the whole zettel, with its metadata, or with its content:
; [!zettel|''zettel'']
: Specifies that you work with a zettel as a whole.
Contains identifier, metadata, and content of a zettel.
; [!meta|''meta'']
: Specifies that you only want to cope with the metadata of a zettel.
Contains identifier and metadata of a zettel.
; [!content|''content'']
: Specifies that you are only interested in the zettel content.
Contains identifier and content of a zettel.