diff --git a/examples/02_Base_Commands.ipynb b/examples/02_Base_Commands.ipynb
index 6c2ae00..ca968ac 100644
--- a/examples/02_Base_Commands.ipynb
+++ b/examples/02_Base_Commands.ipynb
@@ -64,9 +64,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "tags": []
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "aladin.target = \"sgr a*\""
@@ -74,12 +72,12 @@
   },
   {
    "cell_type": "code",
+   "execution_count": null,
    "metadata": {},
+   "outputs": [],
    "source": [
     "aladin.target"
-   ],
-   "outputs": [],
-   "execution_count": null
+   ]
   },
   {
    "cell_type": "markdown",
@@ -91,9 +89,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "tags": []
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "aladin.fov = 2"
@@ -118,13 +114,11 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "tags": []
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
-    "aladin.overlay_survey = \"P/allWISE/color\"\n",
-    "aladin.overlay_survey_opacity = 0.5"
+    "aladin.add_hips(\"P/allWISE/color\", name=\"overlay\")\n",
+    "aladin.set_layer_opacity(\"overlay\", 0.5)"
    ]
   },
   {
@@ -137,9 +131,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "metadata": {
-    "tags": []
-   },
+   "metadata": {},
    "outputs": [],
    "source": [
     "aladin.coo_frame = \"ICRSd\"  # ICRS, and angles expressed in degrees"
@@ -163,12 +155,12 @@
   },
   {
    "cell_type": "code",
+   "execution_count": null,
    "metadata": {},
+   "outputs": [],
    "source": [
     "from astropy.coordinates import Angle, SkyCoord"
-   ],
-   "outputs": [],
-   "execution_count": null
+   ]
   },
   {
    "cell_type": "code",
@@ -204,32 +196,41 @@
    "source": [
     "aladin.add_fits(Path(\"images/m31.fits\"), name=\"M31\", opacity=0.5)"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "You can get all layers identified by their name."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "aladin.layers"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "And remove a layer by its name."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "aladin.remove_layer(\"M31\")"
+   ]
   }
  ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.11.8"
-  },
-  "vscode": {
-   "interpreter": {
-    "hash": "916dbcbb3f70747c44a77c7bcd40155683ae19c65e1c03b4aa3499c5328201f1"
-   }
-  }
- },
+ "metadata": {},
  "nbformat": 4,
  "nbformat_minor": 4
 }