diff --git a/.gitignore b/.gitignore
index 247d79a..3be3209 100644
--- a/.gitignore
+++ b/.gitignore
@@ -100,6 +100,8 @@ celerybeat-schedule
 .idea/
 
 tdm.cfg
+tdm.ini
 devices.cfg
+devices.ini
 tdm*.log
 __version__.py
diff --git a/tdmgr/GUI/console.py b/tdmgr/GUI/console.py
index 48db278..0187065 100644
--- a/tdmgr/GUI/console.py
+++ b/tdmgr/GUI/console.py
@@ -250,7 +250,9 @@ def __init__(self, devices):
         self.lwCommands = QListWidget()
 
         vl.addElements(
-            gbxDevice, self.lwCommands, QLabel("Double-click a command to use it, ESC to close.")
+            gbxDevice,
+            self.lwCommands,
+            QLabel("Double-click a command to use it, ESC to close."),
         )
         self.setLayout(vl)
 
diff --git a/tdmgr/GUI/delegates/devices.py b/tdmgr/GUI/delegates/devices.py
index 1022f03..c7b0f59 100644
--- a/tdmgr/GUI/delegates/devices.py
+++ b/tdmgr/GUI/delegates/devices.py
@@ -296,7 +296,12 @@ def sizeHint(self, option, index):
         return QStyledItemDelegate().sizeHint(option, index)
 
     def get_used_width(self, option, index) -> int:
-        return sum([self.get_devicename_width(option, index), self.get_alerts_width(option, index)])
+        return sum(
+            [
+                self.get_devicename_width(option, index),
+                self.get_alerts_width(option, index),
+            ]
+        )
 
     @staticmethod
     def get_devicename_width(option, index) -> int:
@@ -356,7 +361,10 @@ def paint(self, p: QPainter, option: QStyleOptionViewItem, index):
                 alerts_width = self.get_alerts_width(option, index)
 
                 exc_rect = QRect(
-                    self.get_devicename_width(option, index), y, alerts_width, RECT_SIZE.height()
+                    self.get_devicename_width(option, index),
+                    y,
+                    alerts_width,
+                    RECT_SIZE.height(),
                 )
 
                 if selected:
diff --git a/tdmgr/GUI/devices.py b/tdmgr/GUI/devices.py
index 9d975ef..3888c68 100644
--- a/tdmgr/GUI/devices.py
+++ b/tdmgr/GUI/devices.py
@@ -176,7 +176,10 @@ def create_actions(self):
         self.ctx_menu.addAction(QIcon(":/delete.png"), "Delete", self.ctx_menu_delete_device)
 
         self.agAllPower = QActionGroup(self)
-        for label, shortcut, fill in [("ON", "Ctrl+F1", True), ("OFF", "Ctrl+F2", False)]:
+        for label, shortcut, fill in [
+            ("ON", "Ctrl+F1", True),
+            ("OFF", "Ctrl+F2", False),
+        ]:
             px = make_relay_pixmap(label, filled=fill)
             act = self.agAllPower.addAction(QIcon(px), f"All relays {label}")
             act.setShortcut(shortcut)
@@ -278,7 +281,11 @@ def ctx_menu_restart(self):
     def ctx_menu_reset(self):
         if self.device:
             reset, ok = QInputDialog.getItem(
-                self, "Reset device and restart", "Select reset mode", resets, editable=False
+                self,
+                "Reset device and restart",
+                "Select reset mode",
+                resets,
+                editable=False,
             )
             if ok:
                 self.mqtt.publish(self.device.cmnd_topic("reset"), payload=reset.split(":")[0])
@@ -366,7 +373,7 @@ def select_device(self, idx):
         self.actColor.setEnabled(False)
         self.actChannels.setEnabled(False)
         if color := self.device.color():
-            self.actColor.setEnabled(bool(color.hsbcolor and color.SO68 == 1))
+            self.actColor.setEnabled(bool(color.hsbcolor) and color.SO68 == 0)
             self.actChannels.setEnabled(True)
 
             self.actChannels.menu().clear()
diff --git a/tdmgr/GUI/dialogs/main.py b/tdmgr/GUI/dialogs/main.py
index 560201f..dfd49e2 100644
--- a/tdmgr/GUI/dialogs/main.py
+++ b/tdmgr/GUI/dialogs/main.py
@@ -2,6 +2,7 @@
 import logging
 import re
 
+from paho.mqtt import MQTTException
 from PyQt5.QtCore import QDir, QFileInfo, QSettings, QSize, Qt, QTimer, QUrl, pyqtSlot
 from PyQt5.QtGui import QDesktopServices, QFont, QIcon
 from PyQt5.QtWidgets import (
@@ -15,7 +16,6 @@
     QPushButton,
     QStatusBar,
 )
-from paho.mqtt import MQTTException
 
 from tdmgr.GUI.console import ConsoleWidget
 from tdmgr.GUI.devices import DevicesListWidget
@@ -63,9 +63,13 @@ def __init__(
 
         self.menuBar().setNativeMenuBar(False)
 
+        self.mqtt = None
+        self.setup_mqtt()
+
         self.unknown = []
         self.custom_patterns = []
         self.env = TasmotaEnvironment()
+        self.env.mqtt = self.mqtt
         self.device = None
 
         self.topics = []
@@ -88,8 +92,7 @@ def __init__(
             )
             device.debug = self.devices.value("debug", False, bool)
             device.p["Mac"] = mac.replace("-", ":")
-            device.env = self.env
-            self.env.devices.append(device)
+            self.env.add_device(device)
 
             # load device command history
             self.devices.beginGroup("history")
@@ -101,7 +104,6 @@ def __init__(
 
         self.device_model = TasmotaDevicesModel(self.settings, self.devices, self.env)
 
-        self.setup_mqtt()
         self.setup_main_layout()
         self.add_devices_tab()
         self.build_mainmenu()
@@ -186,7 +188,9 @@ def build_mainmenu(self):
 
     def build_toolbars(self):
         main_toolbar = Toolbar(
-            orientation=Qt.Horizontal, iconsize=24, label_position=Qt.ToolButtonTextBesideIcon
+            orientation=Qt.Horizontal,
+            iconsize=24,
+            label_position=Qt.ToolButtonTextBesideIcon,
         )
         main_toolbar.setObjectName("main_toolbar")
 
@@ -304,7 +308,8 @@ def mqtt_subscribe(self):
             # the custom patterns
             for custom_pattern in self.custom_patterns:
                 custom_pattern_match = re.match(
-                    custom_pattern.replace("+", f"({MQTT_PATH_REGEX})"), d.p["FullTopic"]
+                    custom_pattern.replace("+", f"({MQTT_PATH_REGEX})"),
+                    d.p["FullTopic"],
                 )
                 if not d.is_default() and not custom_pattern_match:
                     # if pattern is not found then add the device topics to subscription list.
@@ -428,7 +433,7 @@ def mqtt_message(self, msg: Message):
             elif msg.endpoint in ("RESULT", "FULLTOPIC"):
                 # reply from an unknown device
                 if d := lwt_discovery_stage2(self.env, msg):
-                    self.env.devices.append(d)
+                    self.env.add_device(d)
                     self.device_model.addDevice(d)
                     log.debug("DISCOVERY: Sending initial query to topic %s", d.p["Topic"])
                     self.initial_query(d, True)
@@ -438,7 +443,10 @@ def mqtt_message(self, msg: Message):
 
     def export(self):
         fname, _ = QFileDialog.getSaveFileName(
-            self, "Export device list as...", directory=QDir.homePath(), filter="CSV files (*.csv)"
+            self,
+            "Export device list as...",
+            directory=QDir.homePath(),
+            filter="CSV files (*.csv)",
         )
         if fname:
             if not fname.endswith(".csv"):
@@ -564,7 +572,9 @@ def openTelemetry(self):
             self.mqtt_publish(self.device.cmnd_topic("STATUS"), "8")
             self.tele_docks.append(tele_widget)
             self.resizeDocks(
-                self.tele_docks, [100 // len(self.tele_docks) for _ in self.tele_docks], Qt.Vertical
+                self.tele_docks,
+                [100 // len(self.tele_docks) for _ in self.tele_docks],
+                Qt.Vertical,
             )
 
     @pyqtSlot()
@@ -577,7 +587,9 @@ def openConsole(self):
             console_widget.command.setFocus()
             self.consoles.append(console_widget)
             self.resizeDocks(
-                self.consoles, [100 // len(self.consoles) for _ in self.consoles], Qt.Horizontal
+                self.consoles,
+                [100 // len(self.consoles) for _ in self.consoles],
+                Qt.Horizontal,
             )
 
     @pyqtSlot()
diff --git a/tdmgr/GUI/dialogs/timers.py b/tdmgr/GUI/dialogs/timers.py
index f937119..914b504 100644
--- a/tdmgr/GUI/dialogs/timers.py
+++ b/tdmgr/GUI/dialogs/timers.py
@@ -103,7 +103,12 @@ def __init__(self, device, *args, **kwargs):
         hl_tmr_time.addElements(self.cbxTimerPM, self.teTimerTime, lbWnd, self.cbxTimerWnd)
 
         self.gbTimers.addElements(
-            self.cbTimer, hl_tmr_arm_rpt, hl_tmr_out_act, gbTimerMode, hl_tmr_time, hl_tmr_days
+            self.cbTimer,
+            hl_tmr_arm_rpt,
+            hl_tmr_out_act,
+            gbTimerMode,
+            hl_tmr_time,
+            hl_tmr_days,
         )
 
         btns = QDialogButtonBox(QDialogButtonBox.Save | QDialogButtonBox.Close)
@@ -159,7 +164,11 @@ def loadTimer(self, timer=""):
 
     def describeTimer(self):
         if self.cbTimerArm.isChecked():
-            desc = {"days": "", "repeat": "", "timer": self.cbTimer.currentText().upper()}
+            desc = {
+                "days": "",
+                "repeat": "",
+                "timer": self.cbTimer.currentText().upper(),
+            }
             repeat = self.cbTimerRpt.isChecked()
             out = self.cbxTimerOut.currentText()
             act = self.cbxTimerAction.currentText()
diff --git a/tdmgr/GUI/rules.py b/tdmgr/GUI/rules.py
index 7ca4a0b..cc4dbf0 100644
--- a/tdmgr/GUI/rules.py
+++ b/tdmgr/GUI/rules.py
@@ -163,7 +163,10 @@ def load_rule_from_file(self):
     def save_to_file(self):
         new_fname = f"{self.device.name} {self.cbRule.currentText()}.txt"
         file, ok = QFileDialog.getSaveFileName(
-            self, "Save rule", os.path.join(QDir.homePath(), new_fname), "Text files | *.txt"
+            self,
+            "Save rule",
+            os.path.join(QDir.homePath(), new_fname),
+            "Text files | *.txt",
         )
         if ok:
             with open(file, "w") as f:
@@ -262,7 +265,11 @@ def display_rule(self, payload, rule):
         self.actStopOnError.setChecked(payload["StopOnError"] == "ON")
 
     def unfold_rule(self, rules: str):
-        for pat, repl in [(r" on ", "\non "), (r" do ", " do\n\t"), (r" endon", "\nendon ")]:
+        for pat, repl in [
+            (r" on ", "\non "),
+            (r" do ", " do\n\t"),
+            (r" endon", "\nendon "),
+        ]:
             rules = re.sub(pat, repl, rules, flags=re.IGNORECASE)
         return rules.rstrip(" ")
 
diff --git a/tdmgr/GUI/widgets.py b/tdmgr/GUI/widgets.py
index d3b6550..e80278c 100644
--- a/tdmgr/GUI/widgets.py
+++ b/tdmgr/GUI/widgets.py
@@ -146,7 +146,12 @@ def addElements(self, *elements):
 
 class GroupBoxV(GroupBoxBase):
     def __init__(
-        self, title: str, margin: Union[int, List[int]] = 3, spacing: int = 3, *args, **kwargs
+        self,
+        title: str,
+        margin: Union[int, List[int]] = 3,
+        spacing: int = 3,
+        *args,
+        **kwargs,
     ):
         super(GroupBoxV, self).__init__(title, *args, **kwargs)
 
@@ -156,7 +161,12 @@ def __init__(
 
 class GroupBoxH(GroupBoxBase):
     def __init__(
-        self, title: str, margin: Union[int, List[int]] = 3, spacing: int = 3, *args, **kwargs
+        self,
+        title: str,
+        margin: Union[int, List[int]] = 3,
+        spacing: int = 3,
+        *args,
+        **kwargs,
     ):
         super(GroupBoxH, self).__init__(title, *args, **kwargs)
 
@@ -387,7 +397,8 @@ def __init__(self, command, meta, value=None, *args, **kwargs):
 
         elif meta["type"] == "value":
             self.input = SpinBox(
-                minimum=int(meta["parameters"]["min"]), maximum=int(meta["parameters"]["max"])
+                minimum=int(meta["parameters"]["min"]),
+                maximum=int(meta["parameters"]["max"]),
             )
             self.input.setMinimumWidth(75)
             if value:
@@ -538,7 +549,8 @@ def __init__(self, command: str, meta: dict, device: TasmotaDevice):
 
         for idx, value in enumerate(values, start=1):
             sb = SpinBox(
-                minimum=int(meta["parameters"]["min"]), maximum=int(meta["parameters"]["max"])
+                minimum=int(meta["parameters"]["min"]),
+                maximum=int(meta["parameters"]["max"]),
             )
             sb.setValue(value)
             hl_group = HLayout(0)
diff --git a/tdmgr/mqtt.py b/tdmgr/mqtt.py
index fe9f215..cb18db5 100644
--- a/tdmgr/mqtt.py
+++ b/tdmgr/mqtt.py
@@ -40,10 +40,6 @@ def initial_commands():
     commands = [(command, "") for command in commands]
     commands += [("status", "0"), ("gpios", "255")]
 
-    for sht in range(8):
-        commands.append([f"shutterrelay{sht + 1}", ""])
-        commands.append([f"shutterposition{sht + 1}", ""])
-
     return commands
 
 
diff --git a/tdmgr/tasmota/commands.py b/tdmgr/tasmota/commands.py
index a83998c..b3797e8 100644
--- a/tdmgr/tasmota/commands.py
+++ b/tdmgr/tasmota/commands.py
@@ -57,7 +57,10 @@
             "0": {"description": "Keep relay(s) OFF after power up"},
             "1": {"description": "Turn relay(s) ON after power up"},
             "2": {"description": "Toggle relay(s) from last saved state"},
-            "3": {"description": "Switch relay(s) to their last saved state", "default": "True"},
+            "3": {
+                "description": "Switch relay(s) to their last saved state",
+                "default": "True",
+            },
             "4": {"description": "Turn relay(s) ON and disable further relay control"},
             "5": {"description": "Turn relay(s) ON after a PulseTime period"},
         },
diff --git a/tdmgr/tasmota/device.py b/tdmgr/tasmota/device.py
index cb19d0b..f13cf4b 100644
--- a/tdmgr/tasmota/device.py
+++ b/tdmgr/tasmota/device.py
@@ -17,7 +17,7 @@
     ShutterResultSchema,
     TemplateResultSchema,
 )
-from tdmgr.schemas.status import STATUS_SCHEMA_MAP
+from tdmgr.schemas.status import STATUS_SCHEMA_MAP, Status13ResponseSchema
 from tdmgr.tasmota.common import COMMAND_UNKNOWN, MAX_SHUTTERS, Color, DeviceProps, Relay, Shutter
 
 log = logging.getLogger(__name__)
@@ -245,6 +245,17 @@ def process_status(self, schema: BaseModel, payload: dict):
                 else:
                     self.update_property(k, v)
 
+            if schema == Status13ResponseSchema:
+                if self.version_above("12.2.0.6"):  # Support for single-response for all shutters
+                    command = self.cmnd_topic("ShutterRelay")
+                    payload = []
+                else:
+                    command = self.cmnd_topic("Backlog")
+                    payload = [
+                        f"shutterrelay{sht + 1}" for sht in range(len(payload["StatusSHT"].keys()))
+                    ]
+                self.env.mqtt.publish(command, ";".join(payload))
+
         except ValidationError as e:
             log.critical("MQTT: Cannot parse %s", e)
 
@@ -356,7 +367,10 @@ def color(self):
 
     @property
     def ip_address(self) -> str:
-        for ip in [self.p.get("IPAddress"), self.p.get("Ethernet", {}).get("IPAddress")]:
+        for ip in [
+            self.p.get("IPAddress"),
+            self.p.get("Ethernet", {}).get("IPAddress"),
+        ]:
             if ip != "0.0.0.0":
                 return ip
         return "0.0.0.0"
diff --git a/tdmgr/tasmota/environment.py b/tdmgr/tasmota/environment.py
index 98e47a5..894e7b7 100644
--- a/tdmgr/tasmota/environment.py
+++ b/tdmgr/tasmota/environment.py
@@ -15,6 +15,11 @@ def __init__(self):
         self.devices: list[TasmotaDevice] = []
         self.lwts = dict()
         self.retained = set()
+        self.mqtt = None
+
+    def add_device(self, device: TasmotaDevice):
+        self.devices.append(device)
+        device.env = self
 
     def find_device(self, msg: Message) -> TasmotaDevice:
         for d in self.devices:
diff --git a/tdmgr/tasmota/setoptions.py b/tdmgr/tasmota/setoptions.py
index 12f5083..55b5fcb 100644
--- a/tdmgr/tasmota/setoptions.py
+++ b/tdmgr/tasmota/setoptions.py
@@ -27,7 +27,10 @@
         "description": "Allow immediate action on single button press",
         "type": "select",
         "parameters": {
-            "0": {"description": "Single, multi-press and hold button actions", "default": "True"},
+            "0": {
+                "description": "Single, multi-press and hold button actions",
+                "default": "True",
+            },
             "1": {"description": "Only single press action for immediate response"},
         },
     },