Info Catalog org: Setting tags org: Tags org: Tag searches

org: Tag groups

 
 6.3 Tag groups
 ==============
 
 In a set of mutually exclusive tags, the first tag can be defined as a
 _group tag_.  When you search for a group tag, it will return matches
 for all members in the group.  In an agenda view, filtering by a group
 tag will display headlines tagged with at least one of the members of
 the group.  This makes tag searches and filters even more flexible.
 
    You can set group tags by inserting a colon between the group tag and
 other tags—beware that all whitespaces are mandatory so that Org can
 parse this line correctly:
 
      #+TAGS: { @read : @read_book @read_ebook }
 
    In this example, ‘@read’ is a _group tag_ for a set of three tags:
 ‘@read’, ‘@read_book’ and ‘@read_ebook’.
 
    You can also use the ‘:grouptags’ keyword directly when setting
 ‘org-tag-alist’:
 
      (setq org-tag-alist '((:startgroup . nil)
                            ("@read" . nil)
                            (:grouptags . nil)
                            ("@read_book" . nil)
                            ("@read_ebook" . nil)
                            (:endgroup . nil)))
 
    You cannot nest group tags or use a group tag as a tag in another
 group.
 
    If you want to ignore group tags temporarily, toggle group tags
 support with ‘org-toggle-tags-groups’, bound to ‘C-c C-x q’.  If you
 want to disable tag groups completely, set ‘org-group-tags’ to ‘nil’.
 

Info Catalog org: Setting tags org: Tags org: Tag searches