diff --git a/poetry.lock b/poetry.lock
index 00bdfb7..be34cdc 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3919,4 +3919,4 @@ files = [
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.12"
-content-hash = "3eea7c38b9b21441000ab9996329c2efae52464c698b013df5debffd3af5e7e3"
+content-hash = "8f3d473f12e66f997137dab2288517897944a71f63adfb47c4c9104af1a2e7ff"
diff --git a/pyproject.toml b/pyproject.toml
index 31f3f81..b79d4ea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ jupyterlab = "^4.4.10"
 pandas-stubs = "^2.3.2.250926"
 websockets = "^15.0.1"
 pydantic = "^2.12.4"
+httpx = "^0.28.1"
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.3.3"
 pytest-cov = "^5.0.0"
diff --git a/sample2.py b/sample2.py
index 7829d8e..fc25d90 100644
--- a/sample2.py
+++ b/sample2.py
@@ -6,8 +6,15 @@ from pydantic import BaseModel
 
 from watt42_viewlib import attach_w42_state
 
+panel.extension('echarts', 'ace', 'jsoneditor')
+
+SYSTEM_ID = "79476e53-dea6-44fa-976c-eff6260baeb6"
+API_TOKEN = "d0vA6CsrY69N3JAOGtuZMEb9QpbJWPcoxhxRyBXZn8SIisB3weLKjMZwQRo8c2k9BRDtK0qHYnsvUMnqeO7Xog"
+
 w42_state = panel.rx(None)
-attach_w42_state(rx_var=w42_state, system_id="79476e53-dea6-44fa-976c-eff6260baeb6")
+
+# TODO: must pass token, otherwise subscription should fail
+attach_w42_state(rx_var=w42_state, system_id=SYSTEM_ID)
 
 state_as_text = panel.bind(lambda s: f"W42 State:\n\n```\n{json.dumps(s, indent=2)}\n```\n\nReplace this with some awesome visuals", w42_state)
 
@@ -27,6 +34,11 @@ class LoadForecast(BaseModel):
     at: datetime = datetime.now()
     slots: list[float] = []
 
+class Configuration(BaseModel):
+    inverter_sid: str = ""
+    location_lat: float = 0.0
+    location_lon: float = 0.0
+
 class SystemState(BaseModel):
     load_forecast: LoadForecast = LoadForecast()
     pv_forecast: PvForecast = PvForecast()
@@ -34,6 +46,7 @@ class SystemState(BaseModel):
     sell_prices: list[float] = []
     buy_prices: list[float] = []
     output: Output | None = None
+    config: Configuration = Configuration()
 
 state: SystemState = panel.rx(lambda s: SystemState.model_validate(s) if s else SystemState())(w42_state)
 
@@ -139,10 +152,34 @@ prices_chart_rx = panel.rx(prices_chart)(state)
 
 datetime_fmt = "%Y-%m-%d %H:%M:%S"
 
-value = w42_state.rx.value
+config_editor = panel.widgets.JSONEditor(value=state.config.model_dump(), mode='form', height=200, width=400, menu=False)
+
+SCRIPT_ID = "23a6d15a-f7e3-4ff1-b3c1-94d297c972c9"
+
+async def process_config_change(_btn):
+    from httpx import AsyncClient
+    async with AsyncClient() as client:
+        response = await client.post(
+            f"http://localhost:8000/api/scripts/{SCRIPT_ID}/execute?system_guid={SYSTEM_ID}",
+            json={
+                'signal': 'update_config',
+                'request_body': config_editor.value,
+            },
+            headers={
+                "Content-Type": "application/json",
+                "x-api-token": API_TOKEN
+            }
+        )
+        print(f"Config update response: {response.status_code} - {response.text}")
+
+
+# _ = panel.rx(process_config_change)(config_editor.value)
+
+config_submit = panel.widgets.Button(name="Update Configuration", button_type="primary", width=200)
+config_submit.on_click(process_config_change)
 
 _ = panel.template.FastListTemplate(
-    title="Sample W42 View App",
+    title="Sample W42 App",
     sidebar=[panel.pane.Markdown("This is a sample sidebar.")],
     main=[
         # panel.pane.Markdown(state_as_text, sizing_mode='stretch_width'),
@@ -157,6 +194,7 @@ _ = panel.template.FastListTemplate(
             height=300
         ),
         w42_state,
+        panel.Column(config_editor, config_submit, sizing_mode='stretch_width'),
         panel.pane.Markdown(panel.bind(lambda s: f"State at {s.now.strftime(datetime_fmt)}, Load Forecast Time: {s.load_forecast.at}", state), sizing_mode='stretch_width'),
     ],
 ).servable()