Update documentation with references to the @focus keyword

docs/source/usage_interface.rst

@@ -453,6 +453,7 @@ a key or key combination for the inserted content.
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`Ctrl`:kbd:`D`",      "Insert a division sign."
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`G`",                 "Insert a ``@tag`` keyword."
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`V`",                 "Insert a ``@pov`` keyword."
+   ":kbd:`Ctrl`:kbd:`K`, :kbd:`F`",                 "Insert a ``@focus`` keyword."
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`C`",                 "Insert a ``@char`` keyword."
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`P`",                 "Insert a ``@plot`` keyword."
    ":kbd:`Ctrl`:kbd:`K`, :kbd:`T`",                 "Insert a ``@time`` keyword."

docs/source/usage_projects.rst

@@ -51,8 +51,9 @@ no restrictions are enforced by the application. You can use them however you wa
 :guilabel:`Characters`
    Character notes go in this root folder. These are especially important if one wants to use the
    Outline view to see which character appears where, and which part of the story is told from a
-   specific character's point-of-view. Tags in this folder can be references using the ``@pov``
+   specific character's point-of-view or focusing on a particular character's storyline. Tags in
-   keyword for point-of-view characters, or the ``@char`` keyword for other characters.
+   this folder can be referenced using the ``@pov`` keyword for point-of-view characters,
+   ``@focus`` for a focus character, or the ``@char`` keyword for any other characters.
 
 :guilabel:`Locations`
    The locations folder is for various scene locations that you want to track. Tags in this folder

docs/source/usage_structure.rst

@@ -103,28 +103,33 @@ allow multiple values.
    The point-of-view character for the current section. The target must be a note tag in the
    :guilabel:`Character` type root folder.
 
+``@focus``
+   The character that has the focus for the current section. This can be used in cases where the
+   focus is not a point-of-view character. The target must be a note tag in the
+   :guilabel:`Character` type root folder.
+
 ``@char``
-   Other characters in the current section. The target must be a note tag in a
+   Other characters in the current section. The target must be a note tag in the
    :guilabel:`Character` type root folder. This should not include the point-of-view character.
 
 ``@plot``
-   The plot or subplot advanced in the current section. The target must be a note tag in a
+   The plot or subplot advanced in the current section. The target must be a note tag in thje
    :guilabel:`Plot` type root folder.
 
 ``@time``
-   The timelines touched by the current section. The target must be a note tag in a
+   The timelines touched by the current section. The target must be a note tag in the
    :guilabel:`Timeline` type root folder.
 
 ``@location``
-   The location the current section takes place in. The target must be a note tag in a
+   The location the current section takes place in. The target must be a note tag in the
    :guilabel:`Locations` type root folder.
 
 ``@object``
-   Objects present in the current section. The target must be a note tag in an :guilabel:`Object`
+   Objects present in the current section. The target must be a note tag in the :guilabel:`Object`
    type root folder.
 
 ``@entity``
-   Entities present in the current section. The target must be a note tag in an
+   Entities present in the current section. The target must be a note tag in the
    :guilabel:`Entities` type root folder.
 
 ``@custom``