diff --git a/public/index.html b/public/index.html
index d0b3bfa..720649d 100644
--- a/public/index.html
+++ b/public/index.html
@@ -31,6 +31,14 @@
                    placeholder="Enter collection name"
                    class="input-field">
           </div>
+
+          <!-- Global Settings -->
+          <div class="input-group">
+            <div class="checkbox-group">
+              <input type="checkbox" id="global-keep-properties" checked>
+              <label for="global-keep-properties">Keep all event properties (location, description, etc.) for all calendars</label>
+            </div>
+          </div>
   
           <div id="calendars">
             <div class="calendar-entry">
@@ -40,6 +48,10 @@
                 <input type="checkbox" id="override-0">
                 <label for="override-0">Override</label>
               </div>
+              <div class="checkbox-group">
+                <input type="checkbox" id="keep-properties-0" checked>
+                <label for="keep-properties-0">Keep properties</label>
+              </div>
               <button type="button" class="remove-btn" title="Remove calendar"></button>
             </div>
           </div>
diff --git a/public/script.js b/public/script.js
index 58b1af9..b4bd429 100644
--- a/public/script.js
+++ b/public/script.js
@@ -129,6 +129,10 @@ function loadCalendarConfig(config, calendarName) {
               <input type="checkbox" id="override-${calendarIndex}" ${calendar.override ? 'checked' : ''}>
               <label for="override-${calendarIndex}">Override</label>
             </div>
+            <div class="checkbox-group">
+              <input type="checkbox" id="keep-properties-${calendarIndex}" ${calendar.keepProperties ? 'checked' : ''}>
+              <label for="keep-properties-${calendarIndex}">Keep properties</label>
+            </div>
             <button type="button" class="remove-btn" title="Remove calendar"></button>
         `;
         calendars.appendChild(newCalendar);
@@ -150,6 +154,10 @@ addCalendarButton.addEventListener('click', () => {
           <input type="checkbox" id="override-${calendarIndex}">
           <label for="override-${calendarIndex}">Override</label>
         </div>
+        <div class="checkbox-group">
+          <input type="checkbox" id="keep-properties-${calendarIndex}" checked>
+          <label for="keep-properties-${calendarIndex}">Keep properties</label>
+        </div>
         <button type="button" class="remove-btn" title="Remove calendar"></button>
     `;
     calendars.appendChild(newCalendar);
@@ -159,6 +167,7 @@ addCalendarButton.addEventListener('click', () => {
 // Event listener for form submission
 form.addEventListener('submit', (event) => {
     event.preventDefault();
+    const globalKeepProperties = document.getElementById('global-keep-properties').checked;
     const linkGroupName = document.getElementById('link-group-name').value;
     const calendarsData = [];
     let valid = true; // Flag to track URL validity
@@ -166,8 +175,9 @@ form.addEventListener('submit', (event) => {
     for (let i = 0; i < calendarIndex; i++) {
         const prefix = document.getElementById(`prefix-${i}`);
         const override = document.getElementById(`override-${i}`);
+        const keepProperties = document.getElementById(`keep-properties-${i}`);
         const url = document.getElementById(`url-${i}`);
-        if (prefix && override && url && url.value) {
+        if (prefix && override && keepProperties && url && url.value) {
             // Validate the URL
             if (url.value.startsWith('http') && !isValidUrl(url.value)) {
                 valid = false; // Set flag to false if any URL is invalid
@@ -176,7 +186,8 @@ form.addEventListener('submit', (event) => {
                 calendarsData.push({
                     prefix: prefix.value,
                     override: override.checked,
-                    url: url.value
+                    url: url.value,
+                    keepProperties: globalKeepProperties || keepProperties.checked
                 });
             }
         }
diff --git a/src/calendarUtil.js b/src/calendarUtil.js
index 53f6e85..e9d52e0 100644
--- a/src/calendarUtil.js
+++ b/src/calendarUtil.js
@@ -47,7 +47,7 @@ export function addEventsToCalendar(newCalendar, calendars) {
     
     calendars.forEach((calendarRaw) => {
         try {
-            const { data, prefix, override } = calendarRaw; // Extract prefix and override
+            const { data, prefix, override, keepProperties = false } = calendarRaw; // Extract prefix, override and keepProperties
             const calendar = new ICAL.Component(ICAL.parse(calendarRaw.data));
             
             // Extract METHOD from the parsed data (if available)
@@ -98,6 +98,44 @@ export function addEventsToCalendar(newCalendar, calendars) {
                     newEvent.summary = prefix || 'Busy';
                 } else {
                     newEvent.summary = prefix ? `${prefix} ${event.summary}` : event.summary;
+                }
+
+                // Handle all properties based on keepProperties setting
+                if (keepProperties) {
+                    // Preserve all available properties
+                    if (event.location) newEvent.location = event.location;
+                    if (event.description) newEvent.description = event.description;
+
+                    // Copy additional properties from the original component
+                    const originalComponent = vevent;
+
+                    // Preserve URL (for call links)
+                    const url = originalComponent.getFirstPropertyValue('url');
+                    if (url) newEvent.component.updatePropertyWithValue('url', url);
+
+                    // Preserve attendees
+                    const attendees = originalComponent.getAllProperties('attendee');
+                    attendees.forEach(attendee => {
+                        newEvent.component.addProperty(attendee);
+                    });
+
+                    // Preserve categories
+                    const categories = originalComponent.getFirstPropertyValue('categories');
+                    if (categories) newEvent.component.updatePropertyWithValue('categories', categories);
+
+                    // Preserve organizer
+                    const organizer = originalComponent.getFirstPropertyValue('organizer');
+                    if (organizer) newEvent.component.updatePropertyWithValue('organizer', organizer);
+
+                    // Preserve status
+                    const status = originalComponent.getFirstPropertyValue('status');
+                    if (status) newEvent.component.updatePropertyWithValue('status', status);
+
+                    // Preserve class (privacy)
+                    const eventClass = originalComponent.getFirstPropertyValue('class');
+                    if (eventClass) newEvent.component.updatePropertyWithValue('class', eventClass);
+                } else if (!override) {
+                    // Backward compatibility: only preserve location when not overriding
                     if (event.location) newEvent.location = event.location;
                 }