diff --git a/addons/project/kateproject.example b/addons/project/kateproject.example
index 6f634c0a1..a1bdcf912 100644
--- a/addons/project/kateproject.example
+++ b/addons/project/kateproject.example
@@ -1,159 +1,166 @@
 /// This struct describes in almost-C++ the json data structure as expected by the
 /// project plugin.
 /// The json file has to be named ".kateproject".
 struct
 {
    /// name of the project
    string name;
 
    /// The "directory" is optional.
    /// It is probably only useful for the kate-project-generator in cmake (>= 3.0.0).
    /// If set, the directory given here is used as the base directory for the project.
    /// Otherwise, the directory in which the project file is located as the base directory.
    string directory;
 
+   /// If "index" is set to "1", a ctags index file is generated.
+   bool index;
+
    /// The "files" struct describes which files belong to the project.
    /// There are five miutually exclusive methods to do this.
    struct files
    {
       /// "directory" is the files directory. If it is empty, the project base directory
       /// will be used. If it is a relative path, it is appended to the project
       /// base directory. Absolute paths work too.
       string directory;
 
       /// If "git" is set to "1", the list of files is retrieved by running git in the files directory.
       bool git;
 
       /// If "hg" is set to "1", the list of files is retrieved by running hg (mercurial) in the files directory.
       bool hg;
 
       /// If "svn" is set to "1", the list of files is retrieved by running svn (subversion) in the files directory.
       bool svn;
 
       /// "list" can be set to a list of files.
       vector< string > list;
 
       /// If nothing of the above has been set, "filters" can be set to a list of globbing expressions, which
       /// will be executed in the files directory.
       vector< string > filters;
 
       /// If "recursive" is set to 1, the globbing expressions in filters are executed recursively in the directory tree.
       bool recursive;
    };
 
    /// The "build" structure is optional.
    /// If set, its contents are used by the build plugin in kate.
    /// "targets", "default_target" and "clean_target" are supported starting with kate 4.13.
    /// The "build", "clean" and "quick" fields are only used if "targets" is empty.
    /// They servce for backward compatibility with the build plugin < 4.13, or they can
    /// be used as a quicker way to set up projects with up to 3 targets.
    struct build
    {
       /// The build directory
       string directory;
 
       /// "targets" contains a vector of targets (as in a makefile). Each target has a name
       /// and a command. The commands are exeucted in the build directory.
       vector< {string name, string build_cmd} > targets;
 
       /// "default_target" must be set to one of the target names in "targets". This is the target
       /// which will be built by the "Build default target" action of the build plugin.
       string default_target;
 
       /// "clean_target" must be set to one of the target names in "targets". This is the target
       /// which will be built by the "Build clean target" action of the build plugin.
       string clean_target;
 
       /// Creates a target names "build" with the given command.
       string build;
 
       /// Creates a target names "clean" with the given command.
       string clean;
 
       /// Creates a target names "quick" with the given command.
       string quick;
 
    };
 
    /// The "ctags" structure is optional.
    /// If set, it may contain extra options for ctags command used to populate the auto completion popup in Kate.
    struct ctags
    {
       /// "options" can be set to a list of ctags options. You may need to escape character "\".
       vector< string > options;
+
+      /// "index_file" can be set to path of ctags file to generate.
+      /// A relative path is wrt to the project base directory.
+      string index_file;
    }
 
 };
 
 
 
 Simple example, get files via globbing recursively in doc/, no build plugin:
 
 {
    "name": "MyProject",
    "files": [ {
              "directory": "doc",
              "filters": ["*.tex", "Makefile"],
              "recursive": 1
        } ]
 }
 
 
 A project for a custom language named Swine, of wich source files have a suffix .swn:
 
 {
    "name": "Custom",
    "files": [ {
          "directory": ".",
          "filters": ["*.swn"],
          "recursive": 1
       } ],
    "ctags": {
       "options": [
          "--langdef=swine",
          "--langmap=swine:.swn",
          "--regex-swine=/^def[ \t]*([a-zA-Z0-9_]+)/\\1/d,definition/"
       ]
    }
 }
 
 
 A more advanced project file, get the files from svn, set up three commands for the build plugin:
 
 {
    "name": "Foo",
    "files": [ { "svn" : 1  } ],
 
    "build": {
       "directory": "build",
       "build": "make all -j4",
       "clean": "make clean",
       "quick": "make install"
   }
 }
 
 
 An out-of-source project file as generated by cmake: it points to the actual project directory,
 it retrieves the file list from git, and a long list of targets for the build plugin:
 
 
 {
    "name": "CMake@build",
    "directory": "/home/neundorf/src/CMake/cmake",
    "files": [ { "git": 1 } ],
    "build": {
        "directory": "/home/neundorf/src/CMake/build",
        "default_target": "all",
        "clean_target": "clean",
        "targets":[
            { "name":"all", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build -j8 all" },
            { "name":"clean", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build -j8 clean" },
            { "name":"cmLocalGenerator.cxx.o", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmLocalGenerator.cxx.o" },
            { "name":"cmLocalGenerator.cxx.i", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmLocalGenerator.cxx.i" },
 ...
            { "name":"cmLocalGenerator.cxx.s", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmLocalGenerator.cxx.s" },
            { "name":"cmMakefile.cxx.o", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmMakefile.cxx.o" },
            { "name":"cmMakefile.cxx.i", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmMakefile.cxx.i" },
            { "name":"cmMakefile.cxx.s", "build_cmd":"/usr/bin/gmake -C /home/neundorf/src/CMake/build/Source -j8 cmMakefile.cxx.s" }
        ] }
 }