diff --git a/assets/js/common/date.js b/assets/js/common/date.js
index c71faf51..12aa9823 100644
--- a/assets/js/common/date.js
+++ b/assets/js/common/date.js
@@ -101,4 +101,22 @@ const ComunicDate = {
 	},
 }
 
-ComunicWeb.common.date = ComunicDate;
\ No newline at end of file
+ComunicWeb.common.date = ComunicDate;
+
+/**
+ * Get all the days of a specified range
+ * 
+ * @param {Date} start 
+ * @param {Date} end (exclusive)
+ */
+function getDaysOfRange(start, end) {
+	let curr = start;
+	let list = [];
+
+	while (curr < end) {
+		list.push(curr);
+		curr = new Date(curr.getTime() + 1000*60*60*24);
+	}
+
+	return list;
+}
\ No newline at end of file
diff --git a/assets/js/components/presence/PresenceHelper.js b/assets/js/components/presence/PresenceHelper.js
index f7b9e5df..ccce0fe2 100644
--- a/assets/js/components/presence/PresenceHelper.js
+++ b/assets/js/components/presence/PresenceHelper.js
@@ -29,4 +29,38 @@ class ForezPresenceHelper {
             return new Presence(...infos)
         });
     }
+
+    /**
+     * Add a day of presence
+     * 
+     * @param {number} groupID 
+     * @param {number} year 
+     * @param {number} month 
+     * @param {number} day 
+     */
+    static async AddDay(groupID, year, month, day) {
+        await ws("forez_presence/add_day", {
+            group: groupID,
+            year: year,
+            month: month,
+            day: day
+        })
+    }
+
+    /**
+     * Remove a day of presence
+     * 
+     * @param {number} groupID 
+     * @param {number} year 
+     * @param {number} month 
+     * @param {number} day 
+     */
+    static async DelDay(groupID, year, month, day) {
+        await ws("forez_presence/add_day", {
+            group: groupID,
+            year: year,
+            month: month,
+            day: day
+        })
+    }
 }
\ No newline at end of file
diff --git a/assets/js/pages/groups/pages/presence.js b/assets/js/pages/groups/pages/presence.js
index e1463f8c..38b2ba3c 100644
--- a/assets/js/pages/groups/pages/presence.js
+++ b/assets/js/pages/groups/pages/presence.js
@@ -24,19 +24,6 @@ class GroupPresencePage {
         target.appendChild(el);
         
         
-        Vue.createApp({
-            
-            data: () => {
-                return {
-                    
-                }
-            },
-            
-            methods: {
-            }
-            
-        }).mount(el);
-        
         
         const calEvents = presence.map((e) => {
             return {
@@ -44,7 +31,7 @@ class GroupPresencePage {
                 start: new Date(e.year, e.month - 1, e.day),
                 backgroundColor: "#0073b7", //Blue
                 borderColor: "#0073b7", //Blue
-                editable: false,
+                editable: e.userID == userID(),
                 allDay: true,
                 description: users.get(e.userID).fullName
             }
@@ -59,6 +46,22 @@ class GroupPresencePage {
             },
             initialView: 'dayGridMonth',
             events: calEvents,
+
+            // Update events
+            eventResize: function(info) {
+                const newDays = new Set(getDaysOfRange(info.event.start, info.event.end).map(el => el.getTime()));
+                const oldDays = new Set(getDaysOfRange(info.oldEvent.start, info.oldEvent.end).map(el => el.getTime()));
+
+                for (const el of newDays) {
+                    if(oldDays.has(el)) {
+                        newDays.delete(el)
+                        oldDays.delete(el)
+                    }
+                }
+
+                console.info("add", newDays)
+                console.info("del", oldDays)
+            }
         });
 
         calendar.render()