diff --git a/drivers/SmartThings/zigbee-window-treatment/profiles/window-treatment-battery.yml b/drivers/SmartThings/zigbee-window-treatment/profiles/window-treatment-battery.yml
index be0ae73d76..8a04f2afbd 100644
--- a/drivers/SmartThings/zigbee-window-treatment/profiles/window-treatment-battery.yml
+++ b/drivers/SmartThings/zigbee-window-treatment/profiles/window-treatment-battery.yml
@@ -8,6 +8,8 @@ components:
     version: 1
   - id: windowShadeLevel
     version: 1
+  - id: statelessSwitchLevelStep
+    version: 1
   - id: battery
     version: 1
   - id: firmwareUpdate
diff --git a/drivers/SmartThings/zigbee-window-treatment/src/invert-lift-percentage/init.lua b/drivers/SmartThings/zigbee-window-treatment/src/invert-lift-percentage/init.lua
index b586459b9a..b4f48130a5 100644
--- a/drivers/SmartThings/zigbee-window-treatment/src/invert-lift-percentage/init.lua
+++ b/drivers/SmartThings/zigbee-window-treatment/src/invert-lift-percentage/init.lua
@@ -5,13 +5,26 @@
 local capabilities = require "st.capabilities"
 local zcl_clusters = require "st.zigbee.zcl.clusters"
 local window_shade_utils = require "window_shade_utils"
+local utils = require "st.utils"
+local log = require "log"
 
 local WindowCovering = zcl_clusters.WindowCovering
 
 local SHADE_SET_STATUS = "shade_set_status"
+local TARGET_REACH_TOLERANCE = 1 -- ±1 degree tolerance for reaching target
 
 local function current_position_attr_handler(driver, device, value, zb_rx)
   local level = 100 - value.value
+
+  local last_target_level = device:get_field("last_target_level")
+  log.info("---------->IKEA curtain report level:", level, "last_target_level:", last_target_level)
+  if last_target_level then
+    if math.abs(level - last_target_level) <= TARGET_REACH_TOLERANCE then
+      device:set_field("last_target_level", nil)
+      log.info("----------->IKEA curtain reached target, clearing last_target_level")
+    end
+  end
+  
   local current_level = device:get_latest_state("main", capabilities.windowShadeLevel.ID, capabilities.windowShadeLevel.shadeLevel.NAME)
   local windowShade = capabilities.windowShade.windowShade
   if level == -155 then -- unknown position
@@ -57,6 +70,7 @@ local function current_position_attr_handler(driver, device, value, zb_rx)
 end
 
 local function set_shade_level(device, value, command)
+  device:set_field("last_target_level", nil)
   local level = 100 - value
   device:send_to_component(command.component, WindowCovering.server.commands.GoToLiftPercentage(device, level))
 end
@@ -70,6 +84,39 @@ local function window_shade_preset_cmd(driver, device, command)
   set_shade_level(device, level, command)
 end
 
+local function window_shade_step_level_cmd(driver, device, command)
+  local step = command.args.stepSize
+  log.info("------------->IKEA step size:", step)
+  
+  -- Priority: use last_target_level if exists
+  local last_target_level = device:get_field("last_target_level")
+  local current_level = last_target_level or 
+    device:get_latest_state("main", capabilities.windowShadeLevel.ID, 
+      capabilities.windowShadeLevel.shadeLevel.NAME) or 0
+  
+  log.info("------------->IKEA current_level:", current_level, "from last_target_level:", last_target_level ~= nil)
+  
+  -- Calculate new target (user level: 0-100, 0=closed, 100=open)
+  local target_level = current_level + step
+  if target_level > 100 then target_level = 100
+  elseif target_level < 0 then target_level = 0
+  end
+  target_level = utils.round(target_level)
+  
+  log.info("------------->IKEA target_level:", target_level)
+  
+  -- Update tracking state
+  device:set_field("last_target_level", target_level)
+  
+  -- Invert for IKEA: user level → device level
+  local device_level = 100 - target_level
+  
+  log.info("------------->IKEA sending device_level:", device_level)
+  
+  device:send_to_component(command.component, 
+    WindowCovering.server.commands.GoToLiftPercentage(device, device_level))
+end
+
 local ikea_window_treatment = {
   NAME = "inverted lift percentage",
   zigbee_handlers = {
@@ -85,6 +132,9 @@ local ikea_window_treatment = {
     },
     [capabilities.windowShadePreset.ID] = {
       [capabilities.windowShadePreset.commands.presetPosition.NAME] = window_shade_preset_cmd
+    },
+    [capabilities.statelessSwitchLevelStep.ID] = {
+      [capabilities.statelessSwitchLevelStep.commands.stepLevel.NAME] = window_shade_step_level_cmd
     }
   },
   can_handle = require("invert-lift-percentage.can_handle"),
diff --git a/drivers/Unofficial/tuya-zigbee/profiles/window-treatment-reverse.yml b/drivers/Unofficial/tuya-zigbee/profiles/window-treatment-reverse.yml
index 9712eb6849..a6bbc35a10 100644
--- a/drivers/Unofficial/tuya-zigbee/profiles/window-treatment-reverse.yml
+++ b/drivers/Unofficial/tuya-zigbee/profiles/window-treatment-reverse.yml
@@ -4,6 +4,8 @@ components:
   capabilities:
   - id: windowShade
     version: 1
+  - id: statelessSwitchLevelStep
+    version: 1
   - id: windowShadeLevel
     version: 1
   - id: windowShadePreset
diff --git a/drivers/Unofficial/tuya-zigbee/src/curtain/init.lua b/drivers/Unofficial/tuya-zigbee/src/curtain/init.lua
index 03c34cac65..1667c0d998 100644
--- a/drivers/Unofficial/tuya-zigbee/src/curtain/init.lua
+++ b/drivers/Unofficial/tuya-zigbee/src/curtain/init.lua
@@ -19,6 +19,7 @@ local device_management = require "st.zigbee.device_management"
 local tuya_utils = require "tuya_utils"
 local Basic = clusters.Basic
 local packet_id = 0
+local log = require "log"
 
 local PRESET_LEVEL = 50
 local PRESET_LEVEL_KEY = "_presetLevel"
@@ -109,6 +110,7 @@ local function window_shade_level(driver, device, command)
   if level > 100 then
     level = 100
   end
+  log.info("capability handler level ------------->", level)
   level = utils.round(level)
   if device:get_manufacturer() == "_TZE284_nladmfvf" then
     level = 100 - level   -- specific for _TZE284_nladmfvf
@@ -137,7 +139,19 @@ local function tuya_cluster_handler(driver, device, zb_rx)
   -- dp means data point in tuya payload format
   local dp = raw:byte(3)
   local dp_data = raw:byte(10)
-  if dp == 0x03  then
+  if dp == 0x03  then    
+    local knob_target = device:get_field("knob_target_level")
+    log.info("---------->tuya curtain report dp_data:", dp_data)
+    log.info("---------->knob_target:", knob_target)
+    if knob_target then
+      -- Allow ±1 degree tolerance for reaching target
+      if math.abs(knob_target - dp_data) <= 1 then
+        device:set_field("knob_target_level", nil)
+        log.info("tuya curtain reached target, clearing knob_target")
+      end
+    end
+    
+    -- Emit events with device-reported level (dp_data)
     window_shade_level_event = capabilities.windowShadeLevel.shadeLevel(dp_data)
     if dp_data == 0 then
       window_shade_val_event = capabilities.windowShade.windowShade("open")
@@ -153,6 +167,34 @@ local function tuya_cluster_handler(driver, device, zb_rx)
   end
 end
 
+local function knob_to_window_shade_step_cmd(driver, device, command)
+  local step = command.args.stepSize
+  log.info("------------->knob step size:", step)
+  
+  -- Priority: use knob_target_level if exists
+  local knob_target = device:get_field("knob_target_level")
+  local current_level = knob_target or 
+    device:get_latest_state("main", capabilities.windowShadeLevel.ID, 
+      capabilities.windowShadeLevel.shadeLevel.NAME) or 0
+  
+  -- Calculate new target (user level: 0-100, 0=closed, 100=open)
+  log.info("------------->current_level:", current_level)
+  local target_level = current_level + step
+  if target_level > 100 then target_level = 100
+  elseif target_level < 0 then target_level = 0
+  end
+  log.info("------------->target_level:", target_level)
+  
+  -- Update tracking state
+  device:set_field("knob_target_level", target_level)
+  
+  target_level = utils.round(100 - target_level)
+  log.info("------------->sending level:", target_level)
+  
+  tuya_utils.send_tuya_command(device, '\x02', tuya_utils.DP_TYPE_VALUE, '\x00\x00'..string.pack(">I2", target_level), packet_id)
+  packet_id = increase_packet_id(packet_id)
+end
+
 local tuya_curtain_driver = {
   NAME = "tuya curtain",
   lifecycle_handlers = {
@@ -173,6 +215,9 @@ local tuya_curtain_driver = {
     [capabilities.windowShadePreset.ID] = {
       [capabilities.windowShadePreset.commands.presetPosition.NAME] = window_shade_preset,
       [capabilities.windowShadePreset.commands.setPresetPosition.NAME] = set_preset_position_cmd
+    },
+    [capabilities.statelessSwitchLevelStep.ID] = {
+      [capabilities.statelessSwitchLevelStep.commands.stepLevel.NAME] = knob_to_window_shade_step_cmd
     }
   },
   zigbee_handlers = {