diff --git a/src/previewAdv.js b/src/previewAdv.js
new file mode 100644
index 0000000..c6b5860
--- /dev/null
+++ b/src/previewAdv.js
@@ -0,0 +1,152 @@
+/* global tinymce */
+
+tinymce.PluginManager.add('previewAdv', (editor, url) => {
+  let isEnable = true
+
+  editor.ui.registry.addToggleButton('previewAdv', {
+    icon: 'preview',
+    tooltip: 'Enable Preview Adv',
+    onAction: async (_) => {
+      isEnable = !isEnable
+      togglePreviewAdv(isEnable)
+    }
+  })
+
+  function togglePreviewAdv (isEnable) {
+    const advDivs = editor.getBody().querySelectorAll('.adv-preview')
+
+    for (let i = 0; i < advDivs.length; i++) {
+      advDivs[i].style.display = isEnable ? 'block' : 'none'
+    }
+
+    // Update button state
+    setTimeout(() => {
+      const toolbar = editor.getContainer().querySelector('.tox-toolbar-overlord')
+      const btn = toolbar.querySelector('button[aria-label="Enable Preview Adv"]')
+      if (isEnable) {
+        btn.classList.add('tox-tbtn--enabled')
+      } else {
+        btn.classList.remove('tox-tbtn--enabled')
+      }
+    }, 0)
+  }
+
+  editor.on('init', function () {
+    const params = editor.getParam('previewAdv')
+    const thresholds = params.thresholds
+    const blacklist = params.blacklist
+
+    let pCount = 0 // Counter for <p> tags
+    let advCount = 1 // Counter for adv divs
+
+    insertAdv()
+    togglePreviewAdv(isEnable)
+
+    // === TIMER ===
+    let typingTimer
+    const typingDebounce = 1000 // 1 second
+
+    // === EDITOR ACTIONS ===
+    editor.on('SaveContent', function (e) {
+      const tempDiv = document.createElement('div')
+      tempDiv.innerHTML = e.content
+
+      const advDivs = tempDiv.querySelectorAll('.adv-preview')
+      advDivs.forEach(function (div) {
+        div.remove()
+      })
+
+      e.content = tempDiv.innerHTML
+    })
+
+    editor.on('keydown', function () {
+      clearTimeout(typingTimer)
+    })
+
+    editor.on('keyup', function () {
+      clearTimeout(typingTimer)
+      typingTimer = setTimeout(addAdvInEditor, typingDebounce)
+    })
+
+    // === FUNCTIONS ===
+    function insertAdv () {
+      // REMOVE OLD ADV FOR LOAD NEW
+      const advDivs = editor.getBody().querySelectorAll('.adv-preview')
+      for (let i = 0; i < advDivs.length; i++) {
+        advDivs[i].remove()
+      }
+
+      const body = editor.getBody()
+      const paragraphs = body.getElementsByTagName('p')
+
+      for (let i = 0; i < paragraphs.length; i++) {
+        if (pCount === thresholds[advCount]) {
+          if (paragraphs[i].nextElementSibling && paragraphs[i].nextElementSibling.classList.contains('adv-preview')) {
+            continue
+          }
+
+          // === BLACKLIST ===
+          const bfBlacklist = blacklist.before.slice(1, -1).split('|')
+          const afBlacklist = blacklist.after.slice(1, -1).split('|')
+
+          bfBlacklist.push('<br', '\\[[^\\]]')
+          afBlacklist.push('<br', '\\[[^\\]]')
+
+          // AFTER BEFORE
+          // if (bfBlacklist.some(item => paragraphs[i].innerHTML.includes(item))) {
+          //   continue
+          // }
+          if (bfBlacklist.some(item => new RegExp(item).test(paragraphs[i].innerHTML))) {
+            continue
+          }
+
+          // AFTER BLACKLIST
+          // if (afBlacklist.some(item => paragraphs[i + 1].innerHTML.includes(item))) {
+          //   continue
+          // }
+          if (afBlacklist.some(item => new RegExp(item).test(paragraphs[i + 1].innerHTML))) {
+            continue
+          }
+          // === END BLACKLIST ===
+
+          const div = editor.dom.create('div', { class: 'adv-preview', contenteditable: 'false' })
+          div.style.backgroundColor = '#f3f3f3'
+          div.style.color = '#666'
+          div.style.padding = '10px'
+          div.style.border = '1px solid #ccc'
+          div.style.textAlign = 'center'
+          div.style.margin = '10px 0'
+          div.innerHTML = 'Qui ci finiscono le ADV'
+          editor.dom.insertAfter(div, paragraphs[i])
+          advCount++
+        }
+
+        pCount++
+      }
+    }
+
+    function addAdvInEditor () {
+      pCount = 0
+      advCount = 1
+
+      // const bookmark = editor.selection.getBookmark(2, true)
+      insertAdv()
+
+      setTimeout(function () {
+        editor.focus()
+        const nextNode = editor.selection.getNode().nextSibling
+
+        if (nextNode) {
+          editor.selection.setCursorLocation(nextNode, -1)
+        }
+      }, 0)
+    }
+  })
+
+  return {
+    getMetadata: () => ({
+      name: 'Preview Adv',
+      url: 'https://github.com/The-3Labs-Team/tinymce-laravel-shortcode-plus'
+    })
+  }
+})