diff --git a/PyMtApi5/client.py b/PyMtApi5/client.py
index c4bfe1a8..033aff4e 100644
--- a/PyMtApi5/client.py
+++ b/PyMtApi5/client.py
@@ -70,6 +70,7 @@ class Mt5ApiApp:
             "ChartClose": self.process_chart_close,
             "ChartSymbol": self.process_chart_symbol,
             "ChartPeriod": self.process_chart_period,
+            "ChartSetDouble": self.process_chart_set_double,
         }
 
     def on_disconnect(self, error_msg=None):
@@ -515,6 +516,15 @@ class Mt5ApiApp:
         result = mtapi.chart_period(int(parameters))
         print(f"> ChartPeriod: response = {result}")
 
+    def process_chart_set_double(self, mtapi, parameters):
+        pieces = parameters.split(" ", 2)
+        if len(pieces) != 3 or not pieces[0] or not pieces[1] or not pieces[2]:
+            print(f"! Invalid parameters for command ChartSetDouble: {parameters}")
+            return
+        prop_id = mt5enums.ENUM_CHART_PROPERTY_DOUBLE(int(pieces[1]))
+        result = mtapi.chart_set_double(int(pieces[0]), prop_id, float(pieces[2]))
+        print(f"> ChartSetDouble: response = {result}")
+
     def mtapi_command_thread(self, mtapi):
         while mtapi.is_connected():
             filename = "client.cmd"
diff --git a/PyMtApi5/mt5apiclient.py b/PyMtApi5/mt5apiclient.py
index 9c0c75d1..71426044 100644
--- a/PyMtApi5/mt5apiclient.py
+++ b/PyMtApi5/mt5apiclient.py
@@ -524,6 +524,11 @@ class Mt5ApiClient:
         cmd_params = {"ChartId": chart_id}
         return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartPeriod, cmd_params)
 
+    # ChartSetDouble
+    def chart_set_double(self, chart_id, prop_id: ENUM_CHART_PROPERTY_DOUBLE, value):
+        cmd_params = {"ChartId": chart_id, "PropId": prop_id, "Value": value}
+        return self.__send_command(self.__get_default_expert(), Mt5CommandType.ChartSetDouble, cmd_params)
+
     # Private methods
 
     def __event_thread_func(self):