diff --git a/src/im/ImClient.ts b/src/im/ImClient.ts
index b88e2e4..796276f 100644
--- a/src/im/ImClient.ts
+++ b/src/im/ImClient.ts
@@ -49,7 +49,14 @@ export class ImClient {
       try {
         const frame = JSON.parse(event.data as string)
         if (frame.type === 'MESSAGE') {
-          this.emit('message', this.normalizeMessage(frame.payload as ImMessage))
+          const message = this.normalizeMessage(frame.payload as ImMessage)
+          if (message.status === 'READ') {
+            this.emit('read', message)
+          }
+          if (message.revoked || message.status === 'REVOKED' || message.msgType === 'REVOKED') {
+            this.emit('revoke', { msgId: message.id, operatorId: message.fromId ?? message.fromUserId })
+          }
+          this.emit('message', message)
         } else if (frame.type === 'REVOKE') {
           this.emit('revoke', frame.payload as { msgId: string; operatorId: string })
         }
diff --git a/src/im/api.ts b/src/im/api.ts
index ca9776c..de938e8 100644
--- a/src/im/api.ts
+++ b/src/im/api.ts
@@ -48,6 +48,54 @@ export function fetchGroupHistory(groupId: string, query: HistoryQuery = {}): Pr
   )
 }
 
+export async function locateHistoryPage(
+  toId: string,
+  messageId: string,
+  pageSize = 20,
+  maxPages = 20,
+): Promise<ImMessage[] | null> {
+  for (let page = 0; page < Math.max(maxPages, 1); page += 1) {
+    const result = await fetchHistory(toId, { page, size: pageSize })
+    if (result.content.some((item) => item.id === messageId)) {
+      return result.content
+    }
+    if (result.content.length < pageSize) return null
+  }
+  return null
+}
+
+export async function locateGroupHistoryPage(
+  groupId: string,
+  messageId: string,
+  pageSize = 20,
+  maxPages = 20,
+): Promise<ImMessage[] | null> {
+  for (let page = 0; page < Math.max(maxPages, 1); page += 1) {
+    const result = await fetchGroupHistory(groupId, { page, size: pageSize })
+    if (result.content.some((item) => item.id === messageId)) {
+      return result.content
+    }
+    if (result.content.length < pageSize) return null
+  }
+  return null
+}
+
+export function editMessage(messageId: string, content: string): Promise<ImMessage> {
+  return http.put<ImMessage>(
+    `/api/im/messages/${encodeURIComponent(messageId)}`,
+    { content },
+    appQuery(),
+  )
+}
+
+export function revokeMessage(messageId: string): Promise<ImMessage> {
+  return http.post<ImMessage>(
+    `/api/im/messages/${encodeURIComponent(messageId)}/revoke`,
+    undefined,
+    appQuery(),
+  )
+}
+
 export function markRead(targetId: string, chatType: ChatType = 'SINGLE'): Promise<void> {
   return http.put<void>(
     `/api/im/conversations/${encodeURIComponent(targetId)}/read`,
diff --git a/src/im/useIm.ts b/src/im/useIm.ts
index 60b6f64..2862d53 100644
--- a/src/im/useIm.ts
+++ b/src/im/useIm.ts
@@ -7,6 +7,10 @@ import {
   getGroupInfo,
   fetchGroupHistory,
   fetchHistory,
+  editMessage,
+  locateGroupHistoryPage,
+  locateHistoryPage,
+  revokeMessage,
   listFriendRequests,
   listFriends,
   listGroupJoinRequests,
@@ -64,6 +68,14 @@ export function useIm() {
     return fetchGroupHistory(groupId, query)
   }
 
+  function jumpToMessagePage(toId: string, messageId: string, pageSize = 20, maxPages = 20) {
+    return locateHistoryPage(toId, messageId, pageSize, maxPages)
+  }
+
+  function jumpToGroupMessagePage(groupId: string, messageId: string, pageSize = 20, maxPages = 20) {
+    return locateGroupHistoryPage(groupId, messageId, pageSize, maxPages)
+  }
+
   function connect() {
     const im = new ImClient()
     im.on('connected', () => {
@@ -75,6 +87,10 @@ export function useIm() {
       upsertMessage(msg)
       void refreshConversations().catch(() => {})
     })
+    im.on('read', (msg) => {
+      upsertMessage(msg)
+      void refreshConversations().catch(() => {})
+    })
     im.on('error', (e) => { error.value = e })
     im.connect()
     client.value = im
@@ -89,7 +105,11 @@ export function useIm() {
   }
 
   function revoke(msgId: string) {
-    client.value?.revoke(msgId)
+    return revokeMessage(msgId)
+  }
+
+  function edit(msgId: string, content: string) {
+    return editMessage(msgId, content)
   }
 
   function disconnect() {
@@ -168,6 +188,7 @@ export function useIm() {
     connect,
     send,
     revoke,
+    edit,
     disconnect,
     messages,
     conversations,
@@ -176,6 +197,8 @@ export function useIm() {
     refreshConversations,
     loadHistory,
     loadGroupHistory,
+    jumpToMessagePage,
+    jumpToGroupMessagePage,
     setConversationRead,
     setConversationPinnedState,
     setConversationMutedState,
diff --git a/src/index.ts b/src/index.ts
index 78ab265..97072c2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -8,6 +8,10 @@ export {
   getGroupInfo,
   fetchGroupHistory,
   fetchHistory,
+  editMessage,
+  locateGroupHistoryPage,
+  locateHistoryPage,
+  revokeMessage,
   listFriendRequests,
   listFriends,
   listGroupJoinRequests,
diff --git a/src/types/index.ts b/src/types/index.ts
index f517088..09440d4 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -130,6 +130,7 @@ export interface SendMessageParams {
 
 export interface ImEventMap {
   message: (msg: ImMessage) => void
+  read: (msg: ImMessage) => void
   revoke: (data: { msgId: string; operatorId: string }) => void
   connected: () => void
   disconnected: (code: number, reason: string) => void