diff --git a/docs/api/config/configpanel-property.md b/docs/api/config/configpanel-property.md
index defdcc2..26d9299 100644
--- a/docs/api/config/configpanel-property.md
+++ b/docs/api/config/configpanel-property.md
@@ -8,7 +8,7 @@ description: You can learn about the configPanel config in the documentation of
 
 ### Description
 
-@short: Optional. Enables/disables the visibility of the Configuration panel in UI
+@short: Optional. Controls the visibility of the Configuration panel in UI
 
 In UI the panel is hidden/shown by clicking the **Hide Settings** button. 
 
diff --git a/docs/api/events/open-filter-event.md b/docs/api/events/open-filter-event.md
index 5c6f779..8abb36b 100644
--- a/docs/api/events/open-filter-event.md
+++ b/docs/api/events/open-filter-event.md
@@ -32,7 +32,7 @@ The function may return either a boolean value or void. When it returns **false*
 
 ### Example
 
-The example below shows how to make the configuration panel close upon closing the filter box:
+The example below shows how to make the Configuration panel close upon closing the filter box:
 
 ~~~jsx {20-27}
 const widget = new pivot.Pivot("#pivot", {
diff --git a/docs/api/overview/main-overview.md b/docs/api/overview/main-overview.md
index 44e2101..331db1c 100644
--- a/docs/api/overview/main-overview.md
+++ b/docs/api/overview/main-overview.md
@@ -68,6 +68,7 @@ new pivot.Pivot("#root", {
 | :------------------------------------------------- | :----------------------------------------------- |
 | [](../config/columnshape-property.md)              | @getshort(../config/columnshape-property.md)     |
 | [](../config/config-property.md)                   | @getshort(../config/config-property.md)          |
+| [](../config/configpanel-property.md)              | @getshort(../config/configpanel-property.md)     |
 | [](../config/data-property.md)                     | @getshort(../config/data-property.md)            |
 | [](../config/fields-property.md)                   | @getshort(../config/fields-property.md)          |
 | [](../config/headershape-property.md)              | @getshort(../config/headershape-property.md)     |
diff --git a/docs/guides/configuration.md b/docs/guides/configuration.md
index bc0bfe1..6f9e0fe 100644
--- a/docs/guides/configuration.md
+++ b/docs/guides/configuration.md
@@ -22,8 +22,6 @@ You can configure the *Pivot* appearance and functionality via the corresponding
 
 All instructions about working with data see here: [Working with data](guides/working-with-data)
 
-## Datatable 
-
 You can configure and/or customize the following elements of the Pivot table:
 
 - columns and rows
@@ -31,10 +29,23 @@ You can configure and/or customize the following elements of the Pivot table:
 - cells
 - the table sizes
 
-### Resizing the table
+## Resizing the table
 
 You can change the size of the table rows and columns, header and footer using the [`tableShape`](/api/config/tableshape-property) property.
 
+The next sizes are applied by default:
+
+~~~jsx
+const sizes = {
+	rowHeight: 34,
+	headerHeight: 30,
+	footerHeight: 30,
+	colWidth: 150,
+};
+~~~
+
+Example:
+
 ~~~jsx
 const widget = new pivot.Pivot("#pivot", {
   fields,
@@ -66,7 +77,7 @@ const widget = new pivot.Pivot("#pivot", {
 
 To set the width of specific column(s), apply the `width` parameter of the [columnShape property](/api/config/columnshape-property).
 
-### Autosizing columns to content
+## Autosizing columns to content
 
 The widget allows setting the minimum width value for all columns as well as enable sizing for the header, data only or combined auto sizing. To configure all these autosizing settings, you should apply the `autoWidth` parameter of the [`columnShape`](/api/config/columnshape-property) property. 
 
@@ -114,7 +125,81 @@ const pivotWidget = new pivot.Pivot("#pivot", {
 });
 ~~~
 
-### Making columns collapsible
+## Applying templates to cells
+
+To set a template to cells, use the `templates` parameter of the [`tableShape`](/api/properties/tableshape-property) property. It's an object where each key is a field id and the value is a function that returns a string. All columns based on the specified field will have the related template applied. 
+
+In the example below we apply the template to the *score* values to display 2 digits after the decimal point for these values and we add the "€" sign to the *price* values. 
+
+~~~jsx {1-4,8}
+const templates = { 
+price: (v) => (v ? "€" + v : v),
+score: (v) => (v ? parseFloat(v).toFixed(2) : v) 
+};
+
+const widget = new pivot.Pivot("#pivot", {
+  tableShape: {
+    templates,
+  },
+  fields,
+  data,
+  config: {
+    rows: ["studio", "genre"],
+    columns: [],
+    values: [
+      {
+        field: "title",
+        method: "count",
+      },
+      {
+        field: "score",
+        method: "max",
+      },
+      {
+        field: "price",
+        method: "count",
+      },
+    ],
+  },
+});
+~~~
+
+## Applying templates to headers
+
+To define the format of text in headers, apply the `template` parameter of the [`headerShape`](/api/config/headershape-property) property. The parameter is the function that takes the field id, label and sublabel (the name of a method if any is applied) and returns the processed value (the default template is as follows: *template: (label, id, subLabel) => label + (subLabel ? `(${subLabel})` : "")*). By default, for the fields applied as values the label and method are shown (e.g., *Oil(count)*). 
+If no other template is applied to columns, the value of the `label` parameter is displayed. If any [`predicate`](/config/predicates-property) template is applied, it will override the template of the `headerShape` property. 
+
+Example:
+
+In the example below for the **values** fields the header will display the method name (subLabel) and the label:
+
+~~~jsx {19-22}
+const pivotWidget = new pivot.Pivot("#pivot", {
+  fields,
+  data,
+  config: {
+    rows: ["studio", "genre"],
+    columns: [],
+    values: [
+      {
+        field: "title",
+        method: "count",
+      },
+      {
+        field: "score",
+        method: "max",
+      },
+    ],
+  },
+
+  headerShape: {
+    vertical: true,
+    template: (label, id, subLabel) => id + (subLabel ? ` (${subLabel})` : ""),
+  },
+});
+~~~
+
+## Making columns collapsible
 
 It's possible to collapse/expand columns that are under one header. To make columns collapsible, use the value of the `collapsible` parameter of the [`headerShape`](/api/config/headershape-property) property by setting it to **true**.
 
@@ -142,7 +227,7 @@ const widget = new pivot.Pivot("#pivot", {
 });
 ~~~
 
-### Freezing columns
+## Freezing columns
 
 The widget allows freezing columns on the left side, which makes the left-most columns static and visible while scrolling. To freeze columns, apply the **split** parameter of the [`tableShape`](/api/config/tableshape-property) property by setting the value of the `left` property to **true**.
 
@@ -212,7 +297,7 @@ pivotWidget.api.on("render-table", (tableConfig) => {
 });
 ~~~
 
-### Sorting in columns
+## Sorting in columns
 
 The sorting functionality is enabled by default. A user can click the column's header to sort data. To disable/enable sorting, apply the `sort` parameter of the [`columnShape`](/api/config/columnshape-property) property. In the example below we disable sorting.
 
@@ -242,7 +327,7 @@ const pivotWidget = new pivot.Pivot("#pivot", {
 
 For more information about sorting data, refer to [Sorting data](/guides/working-with-data#sorting-data).
 
-### Enabling the tree mode
+## Enabling the tree mode
 
 The widget allows presenting data in a hierarchical format with expandable rows. To switch to the tree mode, apply the `tree` parameter of the [`tableShape`](/api/config/tableshape-property) property by setting its value to **true** (default is **false**).
 To specify the parent row, put its name first in the `rows` array of the [`config`](/api/config/config-property) property. 
@@ -282,7 +367,7 @@ const widget = new pivot.Pivot("#pivot", {
 });
 ~~~
 
-### Expanding/collapsing all rows
+## Expanding/collapsing all rows
 
 To expand/collapse all rows, the **tree** mode should be enabled via the [`tableShape`](/api/config/tableshape-property) property and you should use the [`render-table`](/api/events/render-table-event) event that allows changing configuration settings, namely, making data rows expanded or collapsed (via the `row.open` parameter of the `config` object).
 
@@ -349,7 +434,7 @@ document.body.appendChild(openAllButton);
 document.body.appendChild(closeAllButton);
 ~~~
 
-### Changing text orientation in headers
+## Changing text orientation in headers
 
 To change text orientation from default horizontal to vertical, use the [`headerShape`](/api/config/headershape-propeprty) property and set its `vertical` parameter to **true**. 
 
@@ -387,15 +472,11 @@ const widget = new pivot.Pivot("#pivot", {
 });
 ~~~
 
+## Controlling visibility of Configuration panel
 
+The Configuration panel is displayed by default. The widget provides the default functionality that allows controlling the visibility of the Configuration panel with the button click. It's made possible via the [`configPanel`](api/config/configPanel) property or [`show-config-panel`](/api/events/show-config-panel-event) event.
 
-## Configuration panel
-
-### Default settings
-
-The configuration panel is displayed by default. The widget provides the default functionality that allows controlling the visibility of the Configuration panel with the button click. It's made possible via the [`configPanel`](api/config/configPanel) property or [`show-config-panel`](/api/events/show-config-panel-event) event.
-
-### Hiding configuration panel
+### Hiding Configuration panel
 
 To hide the panel, set the value of the [`configPanel`](api/config/configPanel) property to **false**.
 
diff --git a/docs/guides/customization.md b/docs/guides/customization.md
deleted file mode 100644
index 28c238d..0000000
--- a/docs/guides/customization.md
+++ /dev/null
@@ -1,89 +0,0 @@
----
-sidebar_label: Customization
-title: Customization
-description: You can learn about the customization in the documentation of the DHTMLX JavaScript Pivot library. Browse developer guides and API reference, try out code examples and live demos, and download a free 30-day evaluation version of DHTMLX Pivot.
----
-
-# Customization
-
-Besides configuring Pivot, you can apply the customization options that can help improve Pivot appearance and readability by applying templates and custom styles.
-
-## Applying templates to cells
-
-To set a template to cells, use the `templates` parameter of the [`tableShape`](/api/properties/tableshape-property) property. It's an object where each key is a field id and the value is a function that returns a string. All columns based on the specified field will have the related template applied. 
-
-In the example below we apply the template to the *score* values to display 2 digits after the decimal point for these values and we add the "€" sign to the *price* values. 
-
-~~~jsx {1-4,8}
-const templates = { 
-price: (v) => (v ? "€" + v : v),
-score: (v) => (v ? parseFloat(v).toFixed(2) : v) 
-};
-
-const widget = new pivot.Pivot("#pivot", {
-  tableShape: {
-    templates,
-  },
-  fields,
-  data,
-  config: {
-    rows: ["studio", "genre"],
-    columns: [],
-    values: [
-      {
-        field: "title",
-        method: "count",
-      },
-      {
-        field: "score",
-        method: "max",
-      },
-      {
-        field: "price",
-        method: "count",
-      },
-    ],
-  },
-});
-~~~
-
-## Applying templates to headers
-
-To define the format of text in headers, apply the `template` parameter of the [`headerShape`](/api/config/headershape-property) property. The parameter is the function that takes the field id, label and sublabel (the name of a method if any is applied) and returns the processed value (the default template is as follows: *template: (label, id, subLabel) => label + (subLabel ? `(${subLabel})` : "")*). By default, for the fields applied as values the label and method are shown (e.g., *Oil(count)*). 
-If no other template is applied to columns, the value of the `label` parameter is displayed. If any [`predicate`](/config/predicates-property) template is applied, it will override the template of the `headerShape` property. 
-
-Example:
-
-In the example below for the **values** fields the header will display the method name (subLabel) and the label:
-
-~~~jsx {19-22}
-const pivotWidget = new pivot.Pivot("#pivot", {
-  fields,
-  data,
-  config: {
-    rows: ["studio", "genre"],
-    columns: [],
-    values: [
-      {
-        field: "title",
-        method: "count",
-      },
-      {
-        field: "score",
-        method: "max",
-      },
-    ],
-  },
-
-  headerShape: {
-    vertical: true,
-    template: (label, id, subLabel) => id + (subLabel ? ` (${subLabel})` : ""),
-  },
-});
-~~~
-
-## Styling
-
-You can customize the appearance of Pivot by changing values of the corresponding CSS variables. Refer to the [Custom styles](/guides/stylization#custom-styles) section for details.
-
-The widget API allows marking cells with the required values. You can do it by applying the `marks` parameter of the [`tableShape`](/api/config/tableshape-property) property. To see detailed description with an example, refer to [Styling cells](/guides/stylization#styling-cells)
\ No newline at end of file
diff --git a/docs/guides/loading-exporting-data.md b/docs/guides/loading-exporting-data.md
index 3159a35..c4980e2 100644
--- a/docs/guides/loading-exporting-data.md
+++ b/docs/guides/loading-exporting-data.md
@@ -8,7 +8,7 @@ description: You can explore how to load and export data in the documentation of
 
 The following types of information can be loaded into Pivot:
 
-- [`data`](/api/config/data-property) - an array of objects, where each object represents the data row.
+- [`data`](/api/config/data-property) - an array of objects, where each object represents the data row
 
 Example:
 
diff --git a/docs/guides/localization.md b/docs/guides/localization.md
index 3da87d9..62c706d 100644
--- a/docs/guides/localization.md
+++ b/docs/guides/localization.md
@@ -6,6 +6,8 @@ description: You can learn about the localization in the documentation of the DH
 
 # Localization
 
+TBD
+
 You can localize all labels in the interface of JavaScript Pivot. For this purpose you need to create a new locale or modify a built-in one and apply it to Pivot.
 
 ## Default locale
diff --git a/docs/guides/working-with-data.md b/docs/guides/working-with-data.md
index bccbf80..f369bdc 100644
--- a/docs/guides/working-with-data.md
+++ b/docs/guides/working-with-data.md
@@ -10,7 +10,7 @@ This page describes how to aggregate data in Pivot. For the instructions about l
 
 ## Defining fields
 
-Use the [`fields`](/api/config/fields-property) property to add fields to the Pivot table.  
+Use the [`fields`](/api/config/fields-property) property to add fields to the Pivot table. To add a new field, you should add a new object to the `fields` array.  
 
 Example:
 
@@ -60,7 +60,7 @@ const widget = new pivot.Pivot("#pivot", {
 
 The widget API allows configuring the sorting settings that are applied applied to all areas (values, columns and rows) during aggregation. The sorting in UI is enabled by clicking the column header.
 
-To set default sorting values, apply the **sort** parameter of the [`fields`](/api/properties/fields-property) property. It accepts either the "asc" or "desc" value, or a custom sorting function.
+To set default sorting values, apply the **sort** parameter of the [`fields`](/api/config/fields-property) property. It accepts either the "asc" or "desc" value, or a custom sorting function.
 
 In the example below we add clickable field labels and the sorting functionality that is enabled with the icon click:
 
diff --git a/sidebars.js b/sidebars.js
index dd140f7..02c48f3 100644
--- a/sidebars.js
+++ b/sidebars.js
@@ -168,7 +168,6 @@ module.exports = {
             items: [
                 "guides/initialization",
                 "guides/configuration",
-                "guides/customization",
                 "guides/loading-exporting-data",
                 "guides/localization",
                 "guides/stylization",