diff --git a/docs/3.0.0-beta.x/guides/registering-a-field-in-admin.md b/docs/3.0.0-beta.x/guides/registering-a-field-in-admin.md
index b5a3fdd89f..503d938e88 100644
--- a/docs/3.0.0-beta.x/guides/registering-a-field-in-admin.md
+++ b/docs/3.0.0-beta.x/guides/registering-a-field-in-admin.md
@@ -40,21 +40,99 @@ Once this step is over all we need to do is to create our new WYSIWYG which will
 
 ### Creating the WYSIWYG
 
-In this part we will create two components:
+In this part we will create three components:
 
+- MediaLib which will be used to insert media in the editor
 - Wysiwyg which will wrap the CKEditor with a label and the errors
 - CKEditor which will be the implementation of the new WYSIWYG
 
+### Creating the MediaLib
+
+**Path —** `./plugins/wysiwyg/admin/src/components/MediaLib/index.js`
+
+```js
+import React, { useEffect, useState } from 'react';
+import { useStrapi, prefixFileUrlWithBackendUrl } from 'strapi-helper-plugin';
+import PropTypes from 'prop-types';
+
+const MediaLib = ({ isOpen, onChange, onToggle }) => {
+  const {
+    strapi: {
+      componentApi: { getComponent },
+    },
+  } = useStrapi();
+  const [data, setData] = useState(null);
+  const [isDisplayed, setIsDisplayed] = useState(false);
+
+  useEffect(() => {
+    if (isOpen) {
+      setIsDisplayed(true);
+    }
+  }, [isOpen]);
+
+  const Component = getComponent('media-library').Component;
+
+  const handleInputChange = data => {
+    if (data) {
+      const { url } = data;
+
+      setData({ ...data, url: prefixFileUrlWithBackendUrl(url) });
+    }
+  };
+
+  const handleClosed = () => {
+    if (data) {
+      onChange(data);
+    }
+
+    setData(null);
+    setIsDisplayed(false);
+  };
+
+  if (Component && isDisplayed) {
+    return (
+      <Component
+        allowedTypes={['images', 'videos', 'files']}
+        isOpen={isOpen}
+        multiple={false}
+        noNavigation
+        onClosed={handleClosed}
+        onInputMediaChange={handleInputChange}
+        onToggle={onToggle}
+      />
+    );
+  }
+
+  return null;
+};
+
+MediaLib.defaultProps = {
+  isOpen: false,
+  onChange: () => {},
+  onToggle: () => {},
+};
+
+MediaLib.propTypes = {
+  isOpen: PropTypes.bool,
+  onChange: PropTypes.func,
+  onToggle: PropTypes.func,
+};
+
+export default MediaLib;
+```
+
 #### Creating the WYSIWYG Wrapper
 
 **Path —** `./plugins/wysiwyg/admin/src/components/Wysiwyg/index.js`
 
 ```js
-import React from 'react';
+iimport React, { useState } from 'react';
 import PropTypes from 'prop-types';
 import { isEmpty } from 'lodash';
+import { Button } from '@buffetjs/core';
 import { Label, InputDescription, InputErrors } from 'strapi-helper-plugin';
 import Editor from '../CKEditor';
+import MediaLib from '../MediaLib';
 
 const Wysiwyg = ({
   inputDescription,
@@ -65,12 +143,28 @@ const Wysiwyg = ({
   onChange,
   value,
 }) => {
+  const [isOpen, setIsOpen] = useState(false);
   let spacer = !isEmpty(inputDescription) ? <div style={{ height: '.4rem' }} /> : <div />;
 
   if (!noErrorsDescription && !isEmpty(errors)) {
     spacer = <div />;
   }
 
+  const handleChange = data => {
+    console.log(data);
+
+    if (data.mime.includes('image')) {
+      const imgTag = `<p><img src="${data.url}" caption="${data.caption}" alt="${data.alternativeText}"></img></p>`;
+      const newValue = value ? `${value}${imgTag}` : imgTag;
+
+      onChange({ target: { name, value: newValue } });
+    }
+
+    // Handle videos and other type of files
+  };
+
+  const handleToggle = () => setIsOpen(prev => !prev);
+
   return (
     <div
       style={{
@@ -80,6 +174,11 @@ const Wysiwyg = ({
       }}
     >
       <Label htmlFor={name} message={label} style={{ marginBottom: 10 }} />
+      <div>
+        <Button color="primary" onClick={handleToggle}>
+          MediaLib
+        </Button>
+      </div>
       <Editor name={name} onChange={onChange} value={value} />
       <InputDescription
         message={inputDescription}
@@ -87,6 +186,7 @@ const Wysiwyg = ({
       />
       <InputErrors errors={(!noErrorsDescription && errors) || []} name={name} />
       {spacer}
+      <MediaLib onToggle={handleToggle} isOpen={isOpen} onChange={handleChange} />
     </div>
   );
 };
@@ -124,6 +224,7 @@ Wysiwyg.propTypes = {
 };
 
 export default Wysiwyg;
+
 ```
 
 #### Implementing CKEditor
@@ -146,11 +247,33 @@ const Wrapper = styled.div`
   }
 `;
 
+const configuration = {
+  toolbar: [
+    'heading',
+    '|',
+    'bold',
+    'italic',
+    'link',
+    'bulletedList',
+    'numberedList',
+    '|',
+    'indent',
+    'outdent',
+    '|',
+    'blockQuote',
+    'insertTable',
+    'mediaEmbed',
+    'undo',
+    'redo',
+  ],
+};
+
 const Editor = ({ onChange, name, value }) => {
   return (
     <Wrapper>
       <CKEditor
         editor={ClassicEditor}
+        config={configuration}
         data={value}
         onChange={(event, editor) => {
           const data = editor.getData();
@@ -164,7 +287,7 @@ const Editor = ({ onChange, name, value }) => {
 Editor.propTypes = {
   onChange: PropTypes.func.isRequired,
   name: PropTypes.string.isRequired,
-  value: PropTypes.string.isRequired,
+  value: PropTypes.string,
 };
 
 export default Editor;