diff --git a/customprompts/mzta-custom-prompts.css b/customprompts/mzta-custom-prompts.css
index 5a8e9bb1..d96b29ca 100644
--- a/customprompts/mzta-custom-prompts.css
+++ b/customprompts/mzta-custom-prompts.css
@@ -199,8 +199,10 @@ table .sort.desc {
 .hidden {
     display: none;
 }
-  
 
+.need_custom_text_span, .need_selected_span{
+    padding-right: 2px;
+}
 
 @media (prefers-color-scheme: dark) {
     body {
diff --git a/customprompts/mzta-custom-prompts.html b/customprompts/mzta-custom-prompts.html
index 0da8e41d..885501c1 100644
--- a/customprompts/mzta-custom-prompts.html
+++ b/customprompts/mzta-custom-prompts.html
@@ -49,11 +49,11 @@
                 </select>
             </td>
             <td rowspan="2" class="w19">
-                <input type="checkbox" id="checkboxNeedSelectedNew" name="need_selected" value="1" tabindex="6"> <label for="checkboxNeedSelectedNew">__MSG_customPrompts_form_label_need_selected__</label>
+                <span class="need_selected_span"><input type="checkbox" id="checkboxNeedSelectedNew" name="need_selected" class="need_selected_new" value="1" tabindex="6"> <label for="checkboxNeedSelectedNew">__MSG_customPrompts_form_label_need_selected__</label></span>
                 <br>
                 <input type="checkbox" id="checkboxNeedSignatureNew" name="need_signature" value="1" tabindex="7"> <label for="checkboxNeedSignatureNew">__MSG_customPrompts_form_label_need_signature__</label>
                 <br>
-                <input type="checkbox" id="checkboxNeedCustomTextNew" name="need_custom_text" value="1" tabindex="8"> <label for="checkboxNeedCustomTextNew">__MSG_customPrompts_form_label_need_custom_text__</label>
+                <span class="need_custom_text_span"><input type="checkbox" id="checkboxNeedCustomTextNew" name="need_custom_text" class="need_custom_text_new" value="1" tabindex="8"> <label for="checkboxNeedCustomTextNew">__MSG_customPrompts_form_label_need_custom_text__</label></span>
                 <br>
                 <input type="checkbox" id="checkboxDefineResponseLangNew" name="define_response_lang" value="1" tabindex="8"> <label for="checkboxDefineResponseLangNew">__MSG_customPrompts_form_label_define_response_lang__</label>
             </td>
diff --git a/customprompts/mzta-custom-prompts.js b/customprompts/mzta-custom-prompts.js
index f105427d..36874407 100644
--- a/customprompts/mzta-custom-prompts.js
+++ b/customprompts/mzta-custom-prompts.js
@@ -385,6 +385,11 @@ function handleCheckboxChange(e) {
     e.preventDefault();
     e.target.setAttribute('checked_val', e.target.checked ? '1' : '0');
     //console.log('>>>>>>>> checked_val: ' + e.target.getAttribute('checked_val'));
+    if (e.target.classList.contains('need_selected') || e.target.classList.contains('need_custom_text') || e.target.classList.contains('need_selected_new') || e.target.classList.contains('need_custom_text_new')) {
+        let textarea = e.target.closest('tr').querySelector('.text_output');
+        checkPromptsConfigForPlaceholders(textarea);
+    }
+    
 }
 
 // Enable save button on input change
@@ -449,11 +454,11 @@ function loadPromptsList(values){
                   </select>` +
                   `<span class="action hiddendata"></span>
                     <br>
-                    <input type="checkbox" class="need_selected" disabled> __MSG_customPrompts_form_label_need_selected__
+                    <span class="need_selected_span"><input type="checkbox" class="need_selected" disabled> __MSG_customPrompts_form_label_need_selected__</span>
                     <br>
                     <input type="checkbox" class="need_signature" disabled> __MSG_customPrompts_form_label_need_signature__
                     <br>
-                    <input type="checkbox" class="need_custom_text` + ((values.is_default == 1) ? ' input_mod':'') + `"` + ((values.is_default == 0) ? ' disabled':'') + ` > __MSG_customPrompts_form_label_need_custom_text__
+                    <span class="need_custom_text_span"><input type="checkbox" class="need_custom_text` + ((values.is_default == 1) ? ' input_mod':'') + `"` + ((values.is_default == 0) ? ' disabled':'') + ` > __MSG_customPrompts_form_label_need_custom_text__</span>
                     <br>
                     <input type="checkbox" class="define_response_lang" disabled> __MSG_customPrompts_form_label_define_response_lang__
                     <br>
@@ -685,6 +690,8 @@ function textareaAutocomplete(textarea, suggestions) {
       const text = textarea.value.substring(0, cursorPosition);
       const match = text.match(/{%[^\s]*$/);
 
+      checkPromptsConfigForPlaceholders(textarea);
+
       if (match) {
         const lastWord = match[0];
         const tr = textarea.parentNode.parentNode.parentNode;
@@ -788,4 +795,26 @@ function textareaAutocomplete(textarea, suggestions) {
         }
     });
 
+}
+
+function checkPromptsConfigForPlaceholders(textarea){
+    // check additional_text and selected_text placeholders presence and the corrispondent checkboxes
+    if(String(textarea.value).indexOf('{%additional_text%}') != -1){
+        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(!need_custom_text_element.checked){
+            need_custom_text_element.closest('.need_custom_text_span').style.border = '2px solid red';
+        }else{
+            need_custom_text_element.closest('.need_custom_text_span').style.border = '';
+        }
+      }
+      if(String(textarea.value).indexOf('{%selected_text%}') != -1){
+        let tr_ancestor = textarea.closest('tr');
+        let selected_text_element = tr_ancestor.querySelector('.need_selected') || tr_ancestor.querySelector('.need_selected_new');
+        if(!selected_text_element.checked){
+            selected_text_element.closest('.need_selected_span').style.border = '2px solid red';
+        }else{
+            selected_text_element.closest('.need_selected_span').style.border = '';
+        }
+      }
 }
\ No newline at end of file