diff --git a/docs/api-reference/index.md b/docs/api-reference/index.md
index 283dd036..73b7c944 100644
--- a/docs/api-reference/index.md
+++ b/docs/api-reference/index.md
@@ -61,6 +61,7 @@
    widgets.Box
    widgets.Checkboxes
    widgets.HBar
+   widgets.RangeSliceWidget
    widgets.SliceWidget
    widgets.VBar
 
diff --git a/docs/gallery/scatter3d-with-slider.ipynb b/docs/gallery/scatter3d-with-slider.ipynb
index 98e74bed..e3092c08 100644
--- a/docs/gallery/scatter3d-with-slider.ipynb
+++ b/docs/gallery/scatter3d-with-slider.ipynb
@@ -29,6 +29,8 @@
    "id": "f99ea04f-3b3b-49df-b4a2-99aa9bd8090a",
    "metadata": {},
    "source": [
+    "## Generate data on a curved panel\n",
+    "\n",
     "We first generate some data that represents events detected on a cylindrical detector panel,\n",
     "as a function of time."
    ]
@@ -74,6 +76,8 @@
    "id": "604b3530-76e0-4fb0-88b3-a731ffb5a162",
    "metadata": {},
    "source": [
+    "## A slider selecting a single data slice\n",
+    "\n",
     "We then construct our interface with a slider,\n",
     "a node that slices our data at the index of the slider,\n",
     "and a `scatter3dfigure`."
@@ -100,6 +104,16 @@
     "pp.widgets.Box([fig, slider])"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "caaa6846-e5b4-4179-9b48-bfb15692dde4",
+   "metadata": {},
+   "source": [
+    "## A slider slicing out a range\n",
+    "\n",
+    "It is also possible to use a `RangeSliceWidget` to create a slider with two handles that selects a data range instead of slicing using a single index:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -111,9 +125,9 @@
     "slider = pw.RangeSliceWidget(da, dims=['time'])\n",
     "slider_node = pp.widget_node(slider)\n",
     "\n",
-    "# Sum over the selected range of time dimension\n",
     "slice_node = pw.slice_dims(data_array=da, slices=slider_node)\n",
     "\n",
+    "# Sum over the selected range of time dimension\n",
     "sum_slices = pp.Node(sc.sum, slice_node, dim='time')\n",
     "\n",
     "fig = pp.scatter3dfigure(sum_slices, pixel_size=0.3)\n",
@@ -150,8 +164,7 @@
    "mimetype": "text/x-python",
    "name": "python",
    "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.11.8"
+   "pygments_lexer": "ipython3"
   }
  },
  "nbformat": 4,