diff --git a/api_webchat/controller.js b/api_webchat/controller.js
index 8b722a25..c6f349c9 100644
--- a/api_webchat/controller.js
+++ b/api_webchat/controller.js
@@ -256,13 +256,13 @@ browser.runtime.onMessage.addListener((message, sender, sendResponse) => {
             promptData = message;
             //send the received prompt to the llm api
             if(message.do_custom_text=="1") {
-                messageInput._showCustomTextField();
+                messageInput._showCustomTextField(message.prompt_info?.custom_text_array);
             }else{
                 sendPrompt(message);
             }
             break;
         case 'api_send_custom_text':
-            let userInput = message.custom_text;
+            let userInput = message.custom_text;    // From version 4.0.0 this is an array
                 if(userInput !== null) {
                     if(!placeholdersUtils.hasPlaceholder(promptData.prompt, 'additional_text')){
                         // no additional_text placeholder, do as usual
@@ -270,7 +270,14 @@ browser.runtime.onMessage.addListener((message, sender, sendResponse) => {
                     }else{
                         // we have the additional_text placeholder, do the magic!
                         let finalSubs = {};
-                        finalSubs["additional_text"] = userInput;
+                        
+                        if (Array.isArray(userInput)) {
+                            userInput.forEach(obj => {
+                                finalSubs[obj.placeholder.replace(/^{%|%}$/g, '').trim()] = obj.custom_text;
+                            });
+                        } else {
+                            finalSubs["additional_text"] = userInput;
+                        }
                         promptData.prompt = placeholdersUtils.replacePlaceholders({
                             text: promptData.prompt,
                             replacements: finalSubs,
diff --git a/api_webchat/messageInput.js b/api_webchat/messageInput.js
index b5b2a6b0..2907174f 100644
--- a/api_webchat/messageInput.js
+++ b/api_webchat/messageInput.js
@@ -69,12 +69,14 @@ messagesInputStyle.textContent = `
     }
     #mzta-custom_text{
         padding:10px;
-        width:auto;
+        width:50%;
+        min-width:300px;
         max-width:80%;
         height:auto;
         max-height:80%;
         border-radius:5px;
-        overflow:auto;
+        overflow-y:auto;
+        overflow-x:hidden;
         position:fixed;
         top:50%;
         left:50%;
@@ -84,15 +86,18 @@ messagesInputStyle.textContent = `
         background:#333;
         color:white;
         border:3px solid white;
+        box-sizing: border-box;
     }
     #mzta-custom_loading{
         height:50px;display:none;
     }
     #mzta-custom_textarea{
         color:black;
-        padding:1px;
+        padding:5px;
         font-size:15px;
         width:100%;
+        box-sizing: border-box;
+        resize: vertical;
     }
     #mzta-custom_info{
         text-align:center;
@@ -100,6 +105,19 @@ messagesInputStyle.textContent = `
         padding-bottom:10px;
         font-size:15px;
     }
+    #mzta-custom_info span{
+        font-size:0.8em;
+    }
+    #mzta-custom_step{
+        position: absolute;
+        bottom: 5px;
+        right: 10px;
+        font-size: 12px;
+        color: #ccc;
+    }
+    #mzta-custom_btn{
+        margin-top:7px;
+    }
     @media (prefers-color-scheme: dark) {
         #messageInputField {
             background-color: #303030;
@@ -178,6 +196,7 @@ customInfo.textContent = browser.i18n.getMessage("chatgpt_win_custom_text");
 customDiv.appendChild(customInfo);
 const customTextArea = document.createElement('textarea');
 customTextArea.id = 'mzta-custom_textarea';
+customTextArea.rows = 5;
 customDiv.appendChild(customTextArea);
 const customLoading = document.createElement('img');
 customLoading.src = browser.runtime.getURL("/images/loading.gif");
@@ -188,11 +207,16 @@ customBtn.id = 'mzta-custom_btn';
 customBtn.textContent = browser.i18n.getMessage("chatgpt_win_send");
 customBtn.classList.add('mzta-btn');
 customDiv.appendChild(customBtn);
+const customStep = document.createElement('div');
+customStep.id = 'mzta-custom_step';
+customDiv.appendChild(customStep);
 messageInputTemplate.content.appendChild(customDiv);
 
 class MessageInput extends HTMLElement {
 
     model = '';
+    _customTextArray = [];
+    _currentCustomTextIndex = 0;
 
     constructor() {
         super();
@@ -212,8 +236,14 @@ class MessageInput extends HTMLElement {
         this._customTextArea = shadowRoot.querySelector('#mzta-custom_textarea');
         this._customLoading = shadowRoot.querySelector('#mzta-custom_loading');
         this._customBtn = shadowRoot.querySelector('#mzta-custom_btn');
+        this._customStep = shadowRoot.querySelector('#mzta-custom_step');
         this._customBtn.addEventListener("click", () => { this._customTextBtnClick({customBtn:this._customBtn,customLoading:this._customLoading,customDiv:this._customText}) });
-        this._customTextArea.addEventListener("keydown", (event) => { if(event.code == "Enter" && event.ctrlKey) this._customTextBtnClick({customBtn:this._customBtn,customLoading:this._customLoading,customDiv:this._customText}) });
+        this._customTextArea.addEventListener("keydown", (event) => {
+            if (event.key === "Enter" && !event.shiftKey) {
+                event.preventDefault();
+                this._customTextBtnClick({customBtn:this._customBtn,customLoading:this._customLoading,customDiv:this._customText});
+            }
+        });
     }
 
     connectedCallback() {
@@ -306,21 +336,64 @@ class MessageInput extends HTMLElement {
         this._messageInputField.value = msg;
     }
 
-    _showCustomTextField(){
+    _showCustomTextField(custom_text_array){
+        this._customTextArray = custom_text_array || [];
+        if (this._customTextArray.length === 0) {
+             this._customTextArray.push({ placeholder: "{%additional_text%}", info: "" });
+        }
+        this._currentCustomTextIndex = 0;
         this._customText.style.display = 'block';
+        this._renderCustomTextStep();
+    }
+
+    _renderCustomTextStep() {
+        const currentItem = this._customTextArray[this._currentCustomTextIndex];
+        const infoDiv = this.shadowRoot.querySelector('#mzta-custom_info');
+        
+        this._customTextArea.value = "";
+        infoDiv.textContent = browser.i18n.getMessage("chatgpt_win_custom_text");
+        
+        if (currentItem.info && currentItem.info.trim() !== "") {
+            infoDiv.appendChild(document.createElement("br"));
+            const infoSpan = document.createElement("span");
+            infoSpan.textContent = "[" + browser.i18n.getMessage("customPrompts_form_label_ID") + ": " + currentItem.info + "]";
+            infoDiv.appendChild(infoSpan);
+        }
+
+        if(this._customTextArray.length > 1) {
+            this._customStep.textContent = (this._currentCustomTextIndex + 1) + "/" + this._customTextArray.length;
+            this._customStep.style.display = 'block';
+        } else {
+            this._customStep.style.display = 'none';
+        }
+        
         this._customTextArea.focus();
     }
 
     async _customTextBtnClick(args) {
         const customText = this._customTextArea.value;
-        // console.log(">>>>>>>>>>>>>>>> customText: " + customText);
-        args.customBtn.disabled = true;
-        args.customBtn.classList.add('disabled');
-        args.customLoading.style.display = 'inline-block';
-        args.customLoading.style.display = 'none';
-        let tab = await browser.tabs.query({ active: true, currentWindow: true });
-        browser.runtime.sendMessage({ command: "api_send_custom_text", custom_text: customText, tabId: tab[0].id });
-        args.customDiv.style.display = 'none';
+        
+        if (this._customTextArray[this._currentCustomTextIndex]) {
+            this._customTextArray[this._currentCustomTextIndex].custom_text = customText;
+        }
+
+        this._currentCustomTextIndex++;
+
+        if (this._currentCustomTextIndex < this._customTextArray.length) {
+            this._renderCustomTextStep();
+        } else {
+            args.customBtn.disabled = true;
+            args.customBtn.classList.add('disabled');
+            args.customLoading.style.display = 'inline-block';
+            
+            let tab = await browser.tabs.query({ active: true, currentWindow: true });
+            browser.runtime.sendMessage({ command: "api_send_custom_text", custom_text: this._customTextArray, tabId: tab[0].id });
+            args.customDiv.style.display = 'none';
+            
+            args.customBtn.disabled = false;
+            args.customBtn.classList.remove('disabled');
+            args.customLoading.style.display = 'none';
+        }
     }
 }
 
diff --git a/js/mzta-chatgpt.js b/js/mzta-chatgpt.js
index e64d5eb8..0a354d35 100644
--- a/js/mzta-chatgpt.js
+++ b/js/mzta-chatgpt.js
@@ -30,6 +30,8 @@ let current_mailMessageId = null;
 let selectionChangeTimeout = null;
 let isDragging = false;
 let delay_wait_completion = 7000; // milliseconds
+let _customTextArray = [];
+let _currentCustomTextIndex = 0;
 let lastSelectedHtml = "";
 
 async function chatgpt_sendMsg(msg, method ='') {       // return -1 send button not found, -2 textarea not found
@@ -126,6 +128,8 @@ function addCustomDiv(prompt_action,tabId,mailMessageId) {
     style.textContent += "#mzta-custom_loading{height:50px;display:none;}";
     style.textContent += "#mzta-custom_textarea{color:black;padding:1px;font-size:15px;width:100%;}";
     style.textContent += "#mzta-custom_info{text-align:center;width:100%;padding-bottom:10px;font-size:15px;}";
+    style.textContent += "#mzta-custom_info span{font-size:0.8em;}";
+    style.textContent += "#mzta-custom_step{position: absolute;bottom: 5px;right: 10px;font-size: 12px;color: #ccc;}";
     style.textContent += "#mzta-prompt-name{font-size:13px;font-style:italic;color:#919191;position:fixed;bottom:75px;;left:0;padding-left:5px;}";
     style.textContent += "#mzta-diff-overlay{position: fixed;top:0;left:0;width:100vw;height:100vh;background: rgba(0, 0, 0, 0.5);display:flex;justify-content:center;align-items:center;z-index:999;}";
     style.textContent += "#mzta-diff{padding:10px;border:2px solid white;border-radius:1em;position:fixed;top:50%;left:50%;width:80%;height:30em;transform:translate(-50%,-50%);z-index:9999;background-color: #333;color: white;}";
@@ -378,6 +382,7 @@ function addCustomDiv(prompt_action,tabId,mailMessageId) {
     customDiv.appendChild(customInfo);
     let customTextArea = document.createElement('textarea');
     customTextArea.id = 'mzta-custom_textarea';
+    customTextArea.rows = 5;
     customDiv.appendChild(customTextArea);
     let customLoading = document.createElement('img');
     customLoading.src = browser.runtime.getURL("/images/loading.gif");
@@ -390,6 +395,9 @@ function addCustomDiv(prompt_action,tabId,mailMessageId) {
     customBtn.addEventListener("click", () => { customTextBtnClick({customBtn:customBtn,customLoading:customLoading,customDiv:customDiv}) });
     customTextArea.addEventListener("keydown", (event) => { if(event.code == "Enter" && event.ctrlKey) customTextBtnClick({customBtn:customBtn,customLoading:customLoading,customDiv:customDiv}) });
     customDiv.appendChild(customBtn);
+    let customStep = document.createElement('div');
+    customStep.id = 'mzta-custom_step';
+    customDiv.appendChild(customStep);
     fixedDiv.appendChild(customDiv);
 
     // light background hint with diagonal thick arrow
@@ -466,14 +474,54 @@ function createReplyToAllIcon() {
   return svg;
 }
 
+function renderCustomTextStep() {
+    const currentItem = _customTextArray[_currentCustomTextIndex];
+    const infoDiv = document.getElementById('mzta-custom_info');
+    const customTextArea = document.getElementById('mzta-custom_textarea');
+    const customStep = document.getElementById('mzta-custom_step');
+    
+    customTextArea.value = "";
+    infoDiv.textContent = browser.i18n.getMessage("chatgpt_win_custom_text");
+    
+    if (currentItem.info && currentItem.info.trim() !== "") {
+        infoDiv.appendChild(document.createElement("br"));
+        const infoSpan = document.createElement("span");
+        infoSpan.textContent = "[" + browser.i18n.getMessage("customPrompts_form_label_ID") + ": " + currentItem.info + "]";
+        infoDiv.appendChild(infoSpan);
+    }
+
+    if(_customTextArray.length > 1) {
+        customStep.textContent = (_currentCustomTextIndex + 1) + "/" + _customTextArray.length;
+        customStep.style.display = 'block';
+    } else {
+        customStep.style.display = 'none';
+    }
+    
+    customTextArea.focus();
+}
+
 function customTextBtnClick(args) {
     const customText = document.getElementById('mzta-custom_textarea').value;
-    args.customBtn.disabled = true;
-    args.customBtn.classList.add('disabled');
-    args.customLoading.style.display = 'inline-block';
-    args.customLoading.style.display = 'none';
-    doProceed(current_message,customText);
-    args.customDiv.style.display = 'none';
+    
+    if (_customTextArray[_currentCustomTextIndex]) {
+        _customTextArray[_currentCustomTextIndex].custom_text = customText;
+    }
+
+    _currentCustomTextIndex++;
+
+    if (_currentCustomTextIndex < _customTextArray.length) {
+        renderCustomTextStep();
+    } else {
+        args.customBtn.disabled = true;
+        args.customBtn.classList.add('disabled');
+        args.customLoading.style.display = 'inline-block';
+        args.customLoading.style.display = 'none';
+        doProceed(current_message, _customTextArray);
+        args.customDiv.style.display = 'none';
+        
+        args.customBtn.disabled = false;
+        args.customBtn.classList.remove('disabled');
+    }
 }
 
 function checkGPTModel(model) {
@@ -547,8 +595,14 @@ function checkLoggedIn(){
 }
 
 function showCustomTextField(){
+    let rawArray = current_message.prompt_info?.custom_text_array;
+    _customTextArray = Array.isArray(rawArray) ? rawArray : [];
+    if (_customTextArray.length === 0) {
+            _customTextArray.push({ placeholder: "{%additional_text%}", info: "" });
+    }
+    _currentCustomTextIndex = 0;
     document.getElementById('mzta-custom_text').style.display = 'block';
-    document.getElementById('mzta-custom_textarea').focus();
+    renderCustomTextStep();
 }
 
 async function doProceed(message, customText = ''){
@@ -558,16 +612,21 @@ async function doProceed(message, customText = ''){
         await checkGPTModel(_gpt_model);
     }
     let final_prompt = message.prompt;
-// console.log(">>>>>>>>>>>> doProceed customText: " + customText);
-// console.log(">>>>>>>>>>>> doProceed final_prompt: " + final_prompt);
-// console.log(">>>>>>>>>>>> doProceed mztaPhDefVal: " + JSON.stringify(mztaPhDefVal));
-    //check if there is the additional_text placeholder
-    if(final_prompt.includes('{%additional_text%}')){
-        // console.log(">>>>>>>>>>>> found ph customText: " + customText);
-        final_prompt = final_prompt.replace('{%additional_text%}', customText || (mztaPhDefVal == '1'?'':'{%additional_text%}'));
-    }else{
-        if(customText != ''){
-            final_prompt += ' '+customText;
+
+    if (Array.isArray(customText)) {
+        customText.forEach(obj => {
+            let escapedPH = obj.placeholder.replace(/[.*+?^{$}()|[\\]\\\\]/g, '\\\\$&');
+            let regex = new RegExp(escapedPH, 'g');
+            final_prompt = final_prompt.replace(regex, obj.custom_text);
+        });
+    } else {
+        //check if there is the additional_text placeholder
+        if(final_prompt.includes('{%additional_text%}')){
+            final_prompt = final_prompt.replace('{%additional_text%}', customText || (mztaPhDefVal == '1'?'':'{%additional_text%}'));
+        }else{
+            if(customText != ''){
+                final_prompt += ' '+customText;
+            }
         }
     }
 
diff --git a/js/mzta-menus.js b/js/mzta-menus.js
index 4d04dcaf..cecfa413 100644
--- a/js/mzta-menus.js
+++ b/js/mzta-menus.js
@@ -192,6 +192,13 @@ export class mzta_Menus {
                 only_quoted_text: only_quoted_text,
                 tags_full_list: tags_full_list
             });
+
+            curr_prompt.custom_text_array = [];
+
+            if(placeholdersUtils.hasPlaceholder(curr_prompt.text, 'additional_text')){
+                curr_prompt.custom_text_array = placeholdersUtils.getPlaceholdersAdditionalTextArray(curr_prompt.text);
+            }
+            console.log(">>>>>>>>>>>>>>>>>>> curr_prompt.custom_text_array: " + JSON.stringify(curr_prompt.custom_text_array));
             
             switch(curr_prompt.id){
                 case 'prompt_translate_this':
diff --git a/js/mzta-placeholders.js b/js/mzta-placeholders.js
index d8b63008..b06f82d3 100644
--- a/js/mzta-placeholders.js
+++ b/js/mzta-placeholders.js
@@ -148,7 +148,7 @@ const defaultPlaceholders = [
         default_value: "",
         type: 0,
         is_default: "1",
-        is_dynamic: "0",
+        is_dynamic: "1",
         enabled: 1,
     },
     {
@@ -427,7 +427,7 @@ export const placeholdersUtils = {
             // console.log(">>>>>>>>>> replacePlaceholders match: " + JSON.stringify(match));
             // console.log(">>>>>>>>>> replacePlaceholders p1: " + JSON.stringify(p1));
             // p1 contains the key inside {% %}
-            if (skip_additional_text && (p1 === 'additional_text')) {
+            if (skip_additional_text && ((p1 === 'additional_text') || (p1.startsWith('additional_text:')))) {
                 return match;
             }
             const currPlaceholder = defaultPlaceholders.find(ph => (ph.id === p1) || (ph.is_dynamic == 1 && p1.startsWith(ph.id + ':')));
@@ -436,7 +436,7 @@ export const placeholdersUtils = {
                 return match;
             }
             // Replace if found, otherwise keep the original or substitute with default value
-            return replacements[p1] || (use_default_value ? currPlaceholder.default_value : match);
+            return replacements[p1] || replacements[currPlaceholder.id] || (use_default_value ? currPlaceholder.default_value : match);
         });
     },
 
@@ -459,7 +459,7 @@ export const placeholdersUtils = {
         // If a specific placeholder is provided, we search for it
         if (placeholder !== "") {
           // Dynamically build the regex for the specific placeholder
-          regex = new RegExp(`{%\s*${placeholder}\s*%}`);
+          regex = new RegExp(`{%\s*${placeholder}(:.*?)?\s*%}`);
         } else {
           // Otherwise, we search for any placeholder in the format {% ... %}
           regex = /{%\s*(.*?)\s*%}/;
@@ -485,6 +485,19 @@ export const placeholdersUtils = {
         return regex.test(text);
     },
 
+    getPlaceholdersAdditionalTextArray(prompt_text){
+        const regex = /{%\s*additional_text(?::(.*?))?\s*%}/g;
+        let matches = [];
+        let match;
+        while ((match = regex.exec(prompt_text)) !== null) {
+            matches.push({
+                placeholder: match[0],
+                info: match[1] ? match[1].trim() : ""
+            });
+        }
+        return matches;
+    },
+
     async getPlaceholdersValues(args) {
         const {
             prompt_text = "",
diff --git a/js/mzta-utils-prompt.js b/js/mzta-utils-prompt.js
index c19499f8..28978662 100644
--- a/js/mzta-utils-prompt.js
+++ b/js/mzta-utils-prompt.js
@@ -59,6 +59,13 @@ export const taPromptUtils = {
             if(placeholdersUtils.hasCustomPlaceholder(curr_prompt.text)){
                 curr_prompt.text = await placeholdersUtils.replaceCustomPlaceholders(curr_prompt.text);
             }
+            
+            // Replace all {%additional_text%} with {%additional_text:N%}
+            let additionalTextCounter = 1;
+            curr_prompt.text = curr_prompt.text.replace(/{%\s*additional_text\s*%}/g, () => {
+                return `{%additional_text:#${additionalTextCounter++}%}`;
+            });
+
             let finalSubs = await placeholdersUtils.getPlaceholdersValues({
                 prompt_text: curr_prompt.text,
                 curr_message: curr_message,
diff --git a/mzta-background.js b/mzta-background.js
index b0eb1f13..ea2473fd 100644
--- a/mzta-background.js
+++ b/mzta-background.js
@@ -515,7 +515,7 @@ async function openChatGPT(promptText, action, curr_tabId, prompt_name = '', do_
                     let mailMessageId = -1;
                     if(mailMessage) mailMessageId = mailMessage.id;
                     promptText = convertNewlinesToParagraphs(promptText);
-                    browser.tabs.sendMessage(createdTab.id, { command: "chatgpt_send", prompt: promptText, action: action, tabId: curr_tabId, mailMessageId: mailMessageId});
+                    browser.tabs.sendMessage(createdTab.id, { command: "chatgpt_send", prompt: promptText, action: action, tabId: curr_tabId, mailMessageId: mailMessageId, prompt_info: prompt_info});
                     taLog.log('[ChatGPT Web] Connection succeded!');
                     taLog.log("[ThunderAI] ChatGPT Web script injected successfully");
                     browser.runtime.onMessage.removeListener(listener);
diff --git a/pages/customprompts/mzta-custom-prompts.js b/pages/customprompts/mzta-custom-prompts.js
index 55824f0d..8e45ac8c 100644
--- a/pages/customprompts/mzta-custom-prompts.js
+++ b/pages/customprompts/mzta-custom-prompts.js
@@ -1417,7 +1417,7 @@ async function checkPromptsConfigForPlaceholders(textarea){
     // check additional_text and selected_text placeholders presence and the corrispondent checkboxes
     let tr_ancestor = textarea.closest('tr');
     let need_custom_text_element = tr_ancestor.querySelector('.need_custom_text') || tr_ancestor.querySelector('.need_custom_text_new');
-    if(String(curr_text).indexOf('{%additional_text%}') != -1){
+    if(/{%\s*additional_text(?::.*?)?\s*%}/.test(String(curr_text))){
         if(!need_custom_text_element.checked){
             need_custom_text_element.closest('.need_custom_text_span').style.border = '2px solid red';
         }else{