diff --git a/error_estimates.ipynb b/error_estimates.ipynb
index 63a6faef7caec26cf7aeb11c7ca68b6fa4e5e337..f1be37a6f7f7d7f7604486ca48887cd45966c0be 100644
--- a/error_estimates.ipynb
+++ b/error_estimates.ipynb
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    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "heading_collapsed": true
+   },
    "source": [
     "# Data Browser: Analyzing the Curated Reference Data Set\n"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hidden": true
+   },
    "source": [
     "<div style=\"max-width: 900px;\">\n",
     "<p>The next cells allow to inspect the deviations occurring in total and relative energy as function of the numerical settings.</p><br>\n",
@@ -961,6 +800,7 @@
   {
    "cell_type": "markdown",
    "metadata": {
+    "hidden": true,
     "init_cell": true
    },
    "source": [
@@ -986,8 +826,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 13,
+   "execution_count": 7,
    "metadata": {
+    "hidden": true,
     "init_cell": true,
     "tags": [
      "startup"
@@ -1880,6 +1721,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "hidden": true,
     "tags": [
      "exe_cell"
     ]
@@ -2040,6 +1882,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "hidden": true,
     "tags": [
      "ptablecell"
     ]
@@ -2116,14 +1959,18 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "heading_collapsed": true
+   },
    "source": [
     "# Estimate Error for Binary Systems"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hidden": true
+   },
    "source": [
     "<div style=\"max-width: 900px;\">\n",
     "<p>The next cells allow to inspect models to predict the deviations occuring in total and relative energy as function of the numerical settings.</p><br>\n",
@@ -2135,7 +1982,9 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hidden": true
+   },
    "source": [
     "<details>\n",
     "    <summary>\n",
@@ -2153,8 +2002,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 14,
+   "execution_count": 8,
    "metadata": {
+    "hidden": true,
     "init_cell": true,
     "tags": [
      "startup"
@@ -2587,6 +2437,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "hidden": true,
     "tags": [
      "exe_cell_estimate"
     ]
@@ -2753,14 +2604,18 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "heading_collapsed": true
+   },
    "source": [
     "# Estimate Error for Arbitrary Systems"
    ]
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "hidden": true
+   },
    "source": [
     "<div style=\"max-width: 900px;\">\n",
     "<p>The next cells allow to estimate the deviations occurring in total and relative energy as function of the numerical settings for arbitrary systems using the formalism discussed in the previous section.</p><br>\n",
@@ -2773,6 +2628,7 @@
   {
    "cell_type": "markdown",
    "metadata": {
+    "hidden": true,
     "init_cell": true
    },
    "source": [
@@ -2793,8 +2649,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 15,
+   "execution_count": 9,
    "metadata": {
+    "hidden": true,
     "init_cell": true,
     "tags": [
      "startup"
@@ -3317,6 +3174,7 @@
    "cell_type": "code",
    "execution_count": null,
    "metadata": {
+    "hidden": true,
     "tags": [
      "process_formula_cell"
     ]
@@ -3401,7 +3259,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.10"
+   "version": "3.7.3"
   },
   "toc": {
    "base_numbering": 1,