diff --git a/src/core/code-listener.ts b/src/core/code-listener.ts
index 688a7ac..5d13218 100644
--- a/src/core/code-listener.ts
+++ b/src/core/code-listener.ts
@@ -58,7 +58,7 @@ function setUpMoodleGpt(config: Config) {
   const inputTypeQuery = ['checkbox', 'radio', 'text', 'number']
     .map(e => `input[type="${e}"]`)
     .join(',');
-  const inputQuery = inputTypeQuery + ', textarea, select, [contenteditable]';
+  const inputQuery = inputTypeQuery + ', textarea, select, [contenteditable], .qtype_essay_editor';
   const forms = document.querySelectorAll('.formulation');
 
   // For each form we inject a function on the queqtion
diff --git a/src/core/create-question.ts b/src/core/create-question.ts
index a765410..42e3f3e 100644
--- a/src/core/create-question.ts
+++ b/src/core/create-question.ts
@@ -16,6 +16,10 @@ function createAndNormalizeQuestion(questionContainer: HTMLElement) {
   for (const useless of accesshideElements) {
     question = question.replace(useless.innerText, '');
   }
+  const attoText = questionContainer.querySelector('.qtype_essay_editor');
+  if (attoText) {
+    question = question.replace((attoText as HTMLElement).innerText, '');
+  }
 
   // Make tables more readable for chat-gpt
   const tables: NodeListOf<HTMLTableElement> = questionContainer.querySelectorAll('.qtext table');
diff --git a/src/core/modes/autocomplete.ts b/src/core/modes/autocomplete.ts
index 5f8f9a2..5e93340 100644
--- a/src/core/modes/autocomplete.ts
+++ b/src/core/modes/autocomplete.ts
@@ -7,6 +7,7 @@ import handleRadio from '@core/questions/radio';
 import handleCheckbox from '@core/questions/checkbox';
 import handleSelect from '@core/questions/select';
 import handleTextbox from '@core/questions/textbox';
+import handleAtto from '@core/questions/atto';
 
 type Props = {
   config: Config;
@@ -26,6 +27,7 @@ function autoCompleteMode(props: Props) {
   if (!props.config.infinite) props.removeListener();
 
   const handlers = [
+    handleAtto,
     handleContentEditable,
     handleTextbox,
     handleNumber,
diff --git a/src/core/questions/atto.ts b/src/core/questions/atto.ts
new file mode 100644
index 0000000..de71aea
--- /dev/null
+++ b/src/core/questions/atto.ts
@@ -0,0 +1,67 @@
+import type Config from '@typing/config';
+import type GPTAnswer from '@typing/gpt-answer';
+
+/**
+ * Hanlde atto editor
+ * See: https://docs.moodle.org/404/en/Atto_editor#Atto_accessibility
+ * @param config
+ * @param inputList
+ * @param gptAnswer
+ * @returns
+ */
+function handleAtto(
+  config: Config,
+  inputList: NodeListOf<HTMLElement>,
+  gptAnswer: GPTAnswer
+): boolean {
+  const input = inputList[0];
+
+  if (!input.classList.contains('qtype_essay_editor')) {
+    return false;
+  }
+
+  const iframe = input.querySelector('iframe');
+  if (!iframe || !iframe.contentDocument || !iframe.contentDocument.body || !iframe.contentWindow) {
+    return false;
+  }
+  const iframeBody = iframe.contentDocument.body;
+
+  const textContainer = iframeBody.querySelector('p');
+  if (!textContainer) return false;
+
+  if (config.typing) {
+    let index = 0;
+    const eventHandler = function (event: KeyboardEvent) {
+      event.preventDefault();
+
+      if (event.key === 'Backspace' || index >= gptAnswer.response.length) {
+        iframe.contentWindow!.removeEventListener('keydown', eventHandler);
+        return;
+      }
+
+      // Append text one character at a time
+      const textNode = document.createTextNode(gptAnswer.response.charAt(index++));
+      textContainer.appendChild(textNode);
+
+      // Move the cursor after the last character
+      const range = iframe.contentDocument!.createRange();
+      range.selectNodeContents(textContainer);
+      range.collapse(false); // Collapse the range to the end point
+      const selection = iframe.contentWindow!.getSelection();
+      if (selection) {
+        selection.removeAllRanges();
+        selection.addRange(range);
+      }
+
+      iframe.contentWindow!.focus(); // Focus the iframe window to see cursor
+    };
+
+    iframe.contentWindow.addEventListener('keydown', eventHandler);
+  } else {
+    textContainer.textContent += gptAnswer.response;
+  }
+
+  return true;
+}
+
+export default handleAtto;
diff --git a/src/core/questions/contenteditable.ts b/src/core/questions/contenteditable.ts
index 609677d..14ca160 100644
--- a/src/core/questions/contenteditable.ts
+++ b/src/core/questions/contenteditable.ts
@@ -1,6 +1,11 @@
 import type Config from '@typing/config';
 import type GPTAnswer from '@typing/gpt-answer';
 
+function isContentEditable(element: HTMLElement) {
+  const contenteditable = element.getAttribute('contenteditable');
+  return typeof contenteditable === 'string' && contenteditable !== 'false';
+}
+
 /**
  * Hanlde contenteditable elements
  * @param config
@@ -17,7 +22,7 @@ function handleContentEditable(
 
   if (
     inputList.length !== 1 || // for now we don't handle many input for editable textcontent
-    typeof input.getAttribute('contenteditable') !== 'string'
+    !isContentEditable(input)
   ) {
     return false;
   }
@@ -28,7 +33,7 @@ function handleContentEditable(
     const eventHandler = function (event: KeyboardEvent) {
       event.preventDefault();
 
-      if (event.key === 'Backspace' || index > gptAnswer.response.length) {
+      if (event.key === 'Backspace' || index >= gptAnswer.response.length) {
         input.removeEventListener('keydown', eventHandler);
         return;
       }
diff --git a/src/core/questions/number.ts b/src/core/questions/number.ts
index 4dfe9d9..251c3b3 100644
--- a/src/core/questions/number.ts
+++ b/src/core/questions/number.ts
@@ -31,7 +31,7 @@ function handleNumber(
 
     const eventHanlder = function (event: Event) {
       event.preventDefault();
-      if ((<KeyboardEvent>event).key === 'Backspace' || index > number.length) {
+      if ((<KeyboardEvent>event).key === 'Backspace' || index >= number.length) {
         input.removeEventListener('keydown', eventHanlder);
         return;
       }
diff --git a/src/core/questions/textbox.ts b/src/core/questions/textbox.ts
index afb419c..846d3d7 100644
--- a/src/core/questions/textbox.ts
+++ b/src/core/questions/textbox.ts
@@ -28,7 +28,7 @@ function handleTextbox(
     const eventHandler = function (event: Event) {
       event.preventDefault();
 
-      if ((<KeyboardEvent>event).key === 'Backspace' || index > gptAnswer.response.length) {
+      if ((<KeyboardEvent>event).key === 'Backspace' || index >= gptAnswer.response.length) {
         input.removeEventListener('keydown', eventHandler);
         return;
       }
diff --git a/test/fake-moodle/index.html b/test/fake-moodle/index.html
index 6053122..44fb601 100644
--- a/test/fake-moodle/index.html
+++ b/test/fake-moodle/index.html
@@ -104,6 +104,16 @@
       </div>
     </section>
 
+    <!-- Textbox -->
+    <section class="formulation">
+      <div class="qtext">
+        <p>What is the name of the USA president ?</p>
+      </div>
+      <div>
+        <input type="text" />
+      </div>
+    </section>
+
     <!-- Select -->
     <section class="formulation">
       <div class="qtext">