diff --git a/pyhon/appliance.py b/pyhon/appliance.py
index 03c94a4..996c463 100644
--- a/pyhon/appliance.py
+++ b/pyhon/appliance.py
@@ -20,7 +20,7 @@ if TYPE_CHECKING:
 
 _LOGGER = logging.getLogger(__name__)
 
-T = TypeVar('T')
+T = TypeVar("T")
 
 
 # pylint: disable=too-many-public-methods,too-many-instance-attributes
diff --git a/pyhon/command_loader.py b/pyhon/command_loader.py
index adf34b8..94b0277 100644
--- a/pyhon/command_loader.py
+++ b/pyhon/command_loader.py
@@ -184,23 +184,44 @@ class HonCommandLoader:
     def _add_favourites(self) -> None:
         """Patch program categories with favourites"""
         for favourite in self._favourites:
-            name = favourite.get("favouriteName", {})
-            command = favourite.get("command", {})
-            command_name = command.get("commandName", "")
-            program_name = self._clean_name(command.get("programName", ""))
-            if not (base := self.commands[command_name].categories.get(program_name)):
+            name, command_name, base = self._get_favourite_info(favourite)
+            if not base:
                 continue
             base_command: HonCommand = copy(base)
-            for data in command.values():
-                if isinstance(data, str):
+            self._update_base_command_with_data(base_command, favourite)
+            self._update_base_command_with_favourite(base_command)
+            self._update_program_categories(command_name, name, base_command)
+
+    def _get_favourite_info(
+        self, favourite: Dict[str, Any]
+    ) -> tuple[str, str, HonCommand | None]:
+        name: str = favourite.get("favouriteName", {})
+        command = favourite.get("command", {})
+        command_name: str = command.get("commandName", "")
+        program_name = self._clean_name(command.get("programName", ""))
+        base_command = self.commands[command_name].categories.get(program_name)
+        return name, command_name, base_command
+
+    def _update_base_command_with_data(
+        self, base_command: HonCommand, command: Dict[str, Any]
+    ) -> None:
+        for data in command.values():
+            if isinstance(data, str):
+                continue
+            for key, value in data.items():
+                if not (parameter := base_command.parameters.get(key)):
                     continue
-                for key, value in data.items():
-                    if parameter := base_command.parameters.get(key):
-                        with suppress(ValueError):
-                            parameter.value = value
-            extra_param = HonParameterFixed("favourite", {"fixedValue": "1"}, "custom")
-            base_command.parameters.update(favourite=extra_param)
-            program = base_command.parameters["program"]
-            if isinstance(program, HonParameterProgram):
-                program.set_value(name)
-            self.commands[command_name].categories[name] = base_command
+                with suppress(ValueError):
+                    parameter.value = value
+
+    def _update_base_command_with_favourite(self, base_command: HonCommand) -> None:
+        extra_param = HonParameterFixed("favourite", {"fixedValue": "1"}, "custom")
+        base_command.parameters.update(favourite=extra_param)
+
+    def _update_program_categories(
+        self, command_name: str, name: str, base_command: HonCommand
+    ) -> None:
+        program = base_command.parameters["program"]
+        if isinstance(program, HonParameterProgram):
+            program.set_value(name)
+        self.commands[command_name].categories[name] = base_command