diff --git a/examples/index.json b/examples/index.json
index 5271b376a6..386ec561ef 100644
--- a/examples/index.json
+++ b/examples/index.json
@@ -417,7 +417,7 @@
   },
   {
     "title": "Lists",
-    "column": 1,
+    "column": 0,
     "category": "Language concepts",
     "samples": [
       {
@@ -767,30 +767,9 @@
       }
     ]
   },
-  {
-    "title": "Regular Expressions",
-    "column": 1,
-    "category": "Language concepts",
-    "samples": [
-      {
-        "name": "RegExp type",
-        "url": "regexp-type",
-        "verifyBuild": true,
-        "verifyOutput": true,
-        "isLearnByExample": true
-      },
-      {
-        "name": "RegExp operations",
-        "url": "regexp-operations",
-        "verifyBuild": true,
-        "verifyOutput": true,
-        "isLearnByExample": true
-      }
-    ]
-  },
   {
     "title": "Tables",
-    "column": 2,
+    "column": 1,
     "category": "Language concepts",
     "samples": [
       {
@@ -825,7 +804,7 @@
   },
   {
     "title": "Query expressions",
-    "column": 2,
+    "column": 1,
     "category": "Language concepts",
     "samples": [
       {
@@ -1176,6 +1155,27 @@
       }
     ]
   },
+  {
+    "title": "Regular Expressions",
+    "column": 2,
+    "category": "Language concepts",
+    "samples": [
+      {
+        "name": "RegExp type",
+        "url": "regexp-type",
+        "verifyBuild": true,
+        "verifyOutput": true,
+        "isLearnByExample": true
+      },
+      {
+        "name": "RegExp operations",
+        "url": "regexp-operations",
+        "verifyBuild": true,
+        "verifyOutput": true,
+        "isLearnByExample": true
+      }
+    ]
+  },
   {
     "title": "Metadata",
     "column": 2,
@@ -1295,7 +1295,7 @@
   },
   {
     "title": "Error handling",
-    "column": 3,
+    "column": 2,
     "category": "Language concepts",
     "samples": [
       {
@@ -1351,7 +1351,7 @@
   },
   {
     "title": "Ignore return values and errors",
-    "column": 3,
+    "column": 2,
     "category": "Language concepts",
     "samples": [
       {
@@ -2348,7 +2348,7 @@
   },
   {
     "title": "HTTP service interceptors",
-    "column": 1,
+    "column": 0,
     "category": "Network libraries",
     "samples": [
       {
@@ -4732,7 +4732,7 @@
       }
     ]
   },
-   {
+  {
     "title": "AWS Lambda",
     "column": 2,
     "category": "Deployment",
@@ -4775,7 +4775,7 @@
       }
     ]
   },
-    {
+  {
     "title": "Azure Functions",
     "column": 3,
     "category": "Deployment",
@@ -4818,7 +4818,7 @@
       }
     ]
   },
-   {
+  {
     "title": "Query data",
     "column": 0,
     "category": "Bal persist",