diff --git a/.clang-format b/.clang-format
index 7ac8aac9..f992c954 100644
--- a/.clang-format
+++ b/.clang-format
@@ -3,7 +3,6 @@ BasedOnStyle:                               WebKit
 BreakConstructorInitializersBeforeComma:    true
 ColumnLimit:                                80
 Cpp11BracedListStyle:                       true
-IndentCaseLabels:                           true
 NamespaceIndentation:                       None
 PointerBindsToType:                         false
 Standard:                                   Cpp11
diff --git a/src/config/config.cc b/src/config/config.cc
index e331e08c..72a8b2f9 100644
--- a/src/config/config.cc
+++ b/src/config/config.cc
@@ -67,25 +67,14 @@ void plantuml::append(const plantuml &r)
 void inheritable_diagram_options::inherit(
     const inheritable_diagram_options &parent)
 {
-    if (!glob.has_value && parent.glob.has_value)
-        glob.append(parent.glob());
-
-    if (!using_namespace.has_value && parent.using_namespace.has_value)
-        using_namespace.append(parent.using_namespace());
-
-    if (!include_relations_also_as_members.has_value &&
-        parent.include_relations_also_as_members.has_value)
-        include_relations_also_as_members.append(
-            parent.include_relations_also_as_members());
-
-    if (!include.has_value && parent.include.has_value)
-        include.append(parent.include());
-
-    if (!exclude.has_value && parent.exclude.has_value)
-        exclude.append(parent.exclude());
-
-    if (!puml.has_value && parent.puml.has_value)
-        puml.append(parent.puml());
+    glob.override(parent.glob);
+    using_namespace.override(parent.using_namespace);
+    include_relations_also_as_members.override(
+        parent.include_relations_also_as_members);
+    include.override(parent.include);
+    exclude.override(parent.exclude);
+    puml.override(parent.puml);
+    generate_method_arguments.override(parent.generate_method_arguments);
 }
 
 bool diagram::should_include_entities(const std::string &ent)
@@ -202,6 +191,7 @@ void append_value<std::vector<std::string>>(
 {
     l.insert(l.end(), r.begin(), r.end());
 }
+
 template <> void append_value<plantuml>(plantuml &l, const plantuml &r)
 {
     l.append(r);
@@ -214,6 +204,7 @@ using clanguml::common::model::scope_t;
 using clanguml::config::class_diagram;
 using clanguml::config::config;
 using clanguml::config::filter;
+using clanguml::config::method_arguments;
 using clanguml::config::package_diagram;
 using clanguml::config::plantuml;
 using clanguml::config::sequence_diagram;
@@ -232,7 +223,25 @@ template <typename T>
 void get_option(const Node &node, clanguml::config::option<T> &option)
 {
     if (node[option.name])
-        option.append(node[option.name].template as<T>());
+        option.set(node[option.name].template as<T>());
+}
+
+template <>
+void get_option<method_arguments>(
+    const Node &node, clanguml::config::option<method_arguments> &option)
+{
+    if (node[option.name]) {
+        const auto &val = node[option.name].as<std::string>();
+        if (val == "full")
+            option.set(method_arguments::full);
+        else if (val == "abbreviated")
+            option.set(method_arguments::abbreviated);
+        else if (val == "none")
+            option.set(method_arguments::none);
+        else
+            throw std::runtime_error(
+                "Invalid generate_method_arguments value: " + val);
+    }
 }
 
 std::shared_ptr<clanguml::config::diagram> parse_diagram_config(const Node &d)
@@ -367,6 +376,7 @@ template <> struct convert<class_diagram> {
 
         get_option(node, rhs.classes);
         get_option(node, rhs.include_relations_also_as_members);
+        get_option(node, rhs.generate_method_arguments);
 
         return true;
     }
@@ -413,6 +423,7 @@ template <> struct convert<config> {
         get_option(node, rhs.compilation_database_dir);
         get_option(node, rhs.include_relations_also_as_members);
         get_option(node, rhs.puml);
+        get_option(node, rhs.generate_method_arguments);
 
         auto diagrams = node["diagrams"];
 
diff --git a/src/config/config.h b/src/config/config.h
index 42acb1d5..b4358b3a 100644
--- a/src/config/config.h
+++ b/src/config/config.h
@@ -34,6 +34,9 @@
 namespace clanguml {
 namespace config {
 
+enum class diagram_type { class_diagram, sequence_diagram, package_diagram };
+enum class method_arguments { full, abbreviated, none };
+
 struct plantuml {
     std::vector<std::string> before;
     std::vector<std::string> after;
@@ -61,35 +64,42 @@ struct filter {
     std::vector<common::model::scope_t> scopes;
 };
 
-enum class diagram_type { class_diagram, sequence_diagram, package_diagram };
-
 std::string to_string(const diagram_type t);
 
 template <typename T> void append_value(T &l, const T &r) { l = r; }
 
+enum class option_inherit_mode { override, append };
+
 template <typename T> struct option {
-    option(const std::string &name_)
+    option(const std::string &name_,
+        option_inherit_mode im = option_inherit_mode::override)
         : name{name_}
+        , value{{}}
     {
     }
-    option(const std::string &name_, const T &initial_value)
+    option(const std::string &name_, const T &initial_value,
+        option_inherit_mode im = option_inherit_mode::override)
         : name{name_}
         , value{initial_value}
-        , has_value{true}
     {
     }
 
-    void append(const T &r)
+    void set(const T &v)
     {
-        append_value(value, r);
-        has_value = true;
+        value = v;
+        is_declared = true;
     }
 
-    option<T> &operator+=(const T &r)
+    void override(const option<T> &o)
     {
-        append_value(value, r);
-        has_value = true;
-        return *this;
+        if (!is_declared && o.is_declared) {
+            if (inheritance_mode == option_inherit_mode::append)
+                append_value(value, o.value);
+            else
+                value = o.value;
+
+            is_declared = true;
+        }
     }
 
     T &operator()() { return value; }
@@ -98,7 +108,8 @@ template <typename T> struct option {
 
     std::string name;
     T value;
-    bool has_value{false};
+    bool is_declared{false};
+    option_inherit_mode inheritance_mode;
 };
 
 struct inheritable_diagram_options {
@@ -108,7 +119,9 @@ struct inheritable_diagram_options {
         "include_relations_also_as_members", true};
     option<filter> include{"include"};
     option<filter> exclude{"exclude"};
-    option<plantuml> puml{"plantuml"};
+    option<plantuml> puml{"plantuml", option_inherit_mode::append};
+    option<method_arguments> generate_method_arguments{
+        "generate_method_arguments", method_arguments::full};
 
     void inherit(const inheritable_diagram_options &parent);
 };
diff --git a/tests/test_config.cc b/tests/test_config.cc
index 159ca2be..1a5aa603 100644
--- a/tests/test_config.cc
+++ b/tests/test_config.cc
@@ -31,6 +31,8 @@ TEST_CASE("Test config simple", "[unit-test]")
     CHECK(diagram.type() == clanguml::config::diagram_type::class_diagram);
     CHECK(diagram.glob().size() == 2);
     CHECK(clanguml::util::contains(diagram.using_namespace(), "clanguml"));
+    CHECK(diagram.generate_method_arguments() ==
+        clanguml::config::method_arguments::full);
 }
 
 TEST_CASE("Test config inherited", "[unit-test]")
@@ -64,6 +66,8 @@ TEST_CASE("Test config includes", "[unit-test]")
     CHECK(def.glob()[0] == "src/**/*.cc");
     CHECK(def.glob()[1] == "src/**/*.h");
     CHECK(clanguml::util::contains(def.using_namespace(), "clanguml"));
+    CHECK(def.generate_method_arguments() ==
+        clanguml::config::method_arguments::none);
 
     auto &cus = *cfg.diagrams["class_2"];
     CHECK(cus.type() == clanguml::config::diagram_type::class_diagram);
@@ -71,4 +75,6 @@ TEST_CASE("Test config includes", "[unit-test]")
     CHECK(cus.glob()[0] == "src/main.cc");
     CHECK(clanguml::util::contains(cus.using_namespace(), "clanguml::ns1"));
     CHECK(cus.include_relations_also_as_members());
+    CHECK(cus.generate_method_arguments() ==
+        clanguml::config::method_arguments::none);
 }
\ No newline at end of file
diff --git a/tests/test_config_data/includes.yml b/tests/test_config_data/includes.yml
index edbf64e4..edcb0174 100644
--- a/tests/test_config_data/includes.yml
+++ b/tests/test_config_data/includes.yml
@@ -1,6 +1,7 @@
 compilation_database_dir: debug
 output_directory: output
 include_relations_also_as_members: false
+generate_method_arguments: none
 using_namespace:
   - clanguml
 include:
diff --git a/tests/test_config_data/simple.yml b/tests/test_config_data/simple.yml
index 251cb43b..22e6d4f7 100644
--- a/tests/test_config_data/simple.yml
+++ b/tests/test_config_data/simple.yml
@@ -8,6 +8,7 @@ diagrams:
       - src/**/*.h
     using_namespace:
       - clanguml
+    generate_method_arguments: full
     include:
       namespaces:
         - clanguml