diff --git a/addon/chrome/content/overlay.xul b/addon/chrome/content/overlay.xul
index 4b4d561..f20f33a 100644
--- a/addon/chrome/content/overlay.xul
+++ b/addon/chrome/content/overlay.xul
@@ -43,7 +43,9 @@
 
     <popup id="zotero-itemmenu">
         <menuseparator />
-        <menuitem id="zotero-itemmenu-__addonRef__-setMainKnowledge" label="&zotero.__addonRef__.itemmenu.setMainKnowledge.label;" oncommand="Zotero.Knowledge4Zotero.events.onEditorEvent.bind(Zotero.Knowledge4Zotero.events)({type: 'setMainKnowledge', content: {params: {itemID: ZoteroPane.getSelectedItems()[0].id}}})" class="menuitem-iconic" style="list-style-image: url('chrome://__addonRef__/skin/favicon.png');" />
+        <menuitem id="zotero-itemmenu-__addonRef__-setMainKnowledge" class="menuitem-iconic popup-type-single-note" label="&zotero.__addonRef__.itemmenu.setMainKnowledge.label;" oncommand="Zotero.Knowledge4Zotero.events.onEditorEvent.bind(Zotero.Knowledge4Zotero.events)({type: 'setMainKnowledge', content: {params: {itemID: ZoteroPane.getSelectedItems()[0].id}}})" style="list-style-image: url('chrome://__addonRef__/skin/favicon.png');" />
+        <menuitem id="zotero-itemmenu-__addonRef__-exportNote" class="menuitem-iconic popup-type-single" label="&zotero.__addonRef__.itemmenu.exportNote.label;" oncommand="Zotero.Knowledge4Zotero.events.onEditorEvent.bind(Zotero.Knowledge4Zotero.events)({type: 'exportNotes', content: {}})" style="list-style-image: url('chrome://__addonRef__/skin/favicon.png');" />
+        <menuitem id="zotero-itemmenu-__addonRef__-exportNotes" class="menuitem-iconic popup-type-multiple" label="&zotero.__addonRef__.itemmenu.exportNotes.label;" oncommand="Zotero.Knowledge4Zotero.events.onEditorEvent.bind(Zotero.Knowledge4Zotero.events)({type: 'exportNotes', content: {}})" style="list-style-image: url('chrome://__addonRef__/skin/favicon.png');" />
     </popup>
 
     <menupopup id="menu_FilePopup">
diff --git a/addon/chrome/locale/en-US/overlay.dtd b/addon/chrome/locale/en-US/overlay.dtd
index 32d6add..31128f1 100644
--- a/addon/chrome/locale/en-US/overlay.dtd
+++ b/addon/chrome/locale/en-US/overlay.dtd
@@ -19,6 +19,8 @@
 <!ENTITY zotero.__addonRef__.workspace.menu.about "About Better Notes">
 
 <!ENTITY zotero.__addonRef__.itemmenu.setMainKnowledge.label "Set Main Note">
+<!ENTITY zotero.__addonRef__.itemmenu.exportNote.label "Export Note and SubNotes">
+<!ENTITY zotero.__addonRef__.itemmenu.exportNotes.label "Export Notes and SubNotes to Markdown">
 
 <!ENTITY zotero.__addonRef__.export.title "Export">
 <!ENTITY zotero.__addonRef__.export.option.label "General">
diff --git a/addon/chrome/locale/zh-CN/overlay.dtd b/addon/chrome/locale/zh-CN/overlay.dtd
index 4fa9bc0..e28f90f 100644
--- a/addon/chrome/locale/zh-CN/overlay.dtd
+++ b/addon/chrome/locale/zh-CN/overlay.dtd
@@ -19,6 +19,8 @@
 <!ENTITY zotero.__addonRef__.workspace.menu.about "关于Better Notes">
 
 <!ENTITY zotero.__addonRef__.itemmenu.setMainKnowledge.label "设置为主笔记">
+<!ENTITY zotero.__addonRef__.itemmenu.exportNote.label "导出笔记及条目子笔记">
+<!ENTITY zotero.__addonRef__.itemmenu.exportNotes.label "导出笔记及条目子笔记为Markdown">
 
 <!ENTITY zotero.__addonRef__.export.title "导出笔记">
 <!ENTITY zotero.__addonRef__.export.option.label "通用">
diff --git a/src/events.ts b/src/events.ts
index 3d29c56..6b51729 100644
--- a/src/events.ts
+++ b/src/events.ts
@@ -115,6 +115,8 @@ class AddonEvents extends AddonBase {
     this.initWorkspaceTab();
     this._Addon.views.switchRealMenuBar(true);
     this._Addon.views.switchKey(true);
+
+    this.initItemSelectListener();
   }
 
   private async initWorkspaceTab() {
@@ -148,6 +150,25 @@ class AddonEvents extends AddonBase {
     }
   }
 
+  private initItemSelectListener() {
+    ZoteroPane.itemsView.onSelect.addListener(() => {
+      const items = ZoteroPane.getSelectedItems();
+      const hasNote = items.filter((i) => i.isNote()).length > 0;
+      const singleItem = items.length === 1;
+      document
+        .querySelectorAll(".popup-type-single")
+        .forEach((el) => ((el as HTMLElement).hidden = !singleItem));
+      document
+        .querySelectorAll(".popup-type-multiple")
+        .forEach((el) => ((el as HTMLElement).hidden = singleItem));
+      document
+        .querySelectorAll(".popup-type-single-note")
+        .forEach(
+          (el) => ((el as HTMLElement).hidden = !(singleItem && hasNote))
+        );
+    });
+  }
+
   public addEditorInstanceListener() {
     if (!Zotero.Notes._knowledgeInit) {
       Zotero.Notes._knowledgeInit = true;
@@ -1135,9 +1156,12 @@ class AddonEvents extends AddonBase {
     } else if (message.type === "export") {
       /*
         message.content = {
-          editorInstance
+          editorInstance?, params?: {item}
         }
       */
+      const item = message.content.editorInstance
+        ? message.content.editorInstance._item
+        : message.content.params.item;
       const io = {
         dataIn: null,
         dataOut: null,
@@ -1154,12 +1178,40 @@ class AddonEvents extends AddonBase {
 
       const options = io.dataOut;
       await this._Addon.knowledge.exportNoteToFile(
-        message.content.editorInstance._item,
+        item,
         options.embedLink,
         options.exportFile,
         options.exportNote,
         options.exportCopy
       );
+    } else if (message.type === "exportNotes") {
+      /*
+        message.content = {
+          editorInstance
+        }
+      */
+      const items = ZoteroPane.getSelectedItems();
+      const noteItems = [];
+      items.forEach((item) => {
+        if (item.isNote()) {
+          noteItems.push(item);
+        }
+        if (item.isRegularItem()) {
+          noteItems.splice(0, 0, Zotero.Items.get(item.getNotes()));
+        }
+      });
+      if (noteItems.length === 0) {
+        this._Addon.views.showProgressWindow(
+          "Better Notes",
+          "No standalone/item note selected."
+        );
+      } else if (noteItems.length === 1) {
+        this.onEditorEvent(
+          new EditorMessage("export", { params: { item: noteItems[0] } })
+        );
+      } else {
+        await this._Addon.knowledge.exportNotesToFile(noteItems);
+      }
     } else if (message.type === "openAttachment") {
       /*
         message.content = {
diff --git a/src/knowledge.ts b/src/knowledge.ts
index 0988d44..ed772ca 100644
--- a/src/knowledge.ts
+++ b/src/knowledge.ts
@@ -804,6 +804,86 @@ class Knowledge extends AddonBase {
     }
   }
 
+  async exportNotesToFile(notes: ZoteroItem[]) {
+    Components.utils.import("resource://gre/modules/osfile.jsm");
+    const filepath = await pick(
+      Zotero.getString("fileInterface.export"),
+      "folder"
+    );
+
+    if (!filepath) {
+      return;
+    }
+
+    await loadTranslator(TRANSLATOR_ID_BETTER_MARKDOWN);
+
+    this._exportPath = Zotero.File.pathToFile(filepath).path + "/attachments";
+    // Convert to unix format
+    this._exportPath = this._exportPath.replace(/\\/g, "/");
+
+    let attachmentCreated = false;
+
+    for (const note of notes) {
+      let newNote: ZoteroItem;
+      if (this.getLinkFromText(note.getNote())) {
+        const noteID = await ZoteroPane_Local.newNote();
+        newNote = Zotero.Items.get(noteID);
+        const rootNoteIds = [note.id];
+
+        const convertResult = await this.convertNoteLines(
+          note,
+          rootNoteIds,
+          true
+        );
+
+        this.setLinesToNote(newNote, convertResult.lines);
+        Zotero.debug(convertResult.subNotes);
+
+        await Zotero.DB.executeTransaction(async () => {
+          await Zotero.Notes.copyEmbeddedImages(note, newNote);
+          for (const subNote of convertResult.subNotes) {
+            await Zotero.Notes.copyEmbeddedImages(subNote, newNote);
+          }
+        });
+      } else {
+        newNote = note;
+      }
+
+      this._exportNote = newNote;
+
+      const hasImage = newNote.getNote().includes("<img");
+      if (hasImage && !attachmentCreated) {
+        await Zotero.File.createDirectoryIfMissingAsync(
+          OS.Path.join(...this._exportPath.split(/\//))
+        );
+        attachmentCreated = true;
+      }
+
+      let filename = `${Zotero.File.pathToFile(filepath).path}/${newNote
+        .getNoteTitle()
+        .replace(/[/\\?%*:|"<>]/g, "-")}-${note.key}.md`;
+      filename = filename.replace(/\\/g, "/");
+      const translator = new Zotero.Translate.Export();
+      translator.setItems([newNote]);
+      translator.setLocation(
+        Zotero.File.pathToFile(OS.Path.join(...filename.split(/\//)))
+      );
+      translator.setTranslator(TRANSLATOR_ID_BETTER_MARKDOWN);
+      translator.translate();
+      this._Addon.views.showProgressWindow(
+        "Better Notes",
+        `Note Saved to ${filename}`
+      );
+      if (newNote.id !== note.id) {
+        const _w: Window = ZoteroPane.findNoteWindow(newNote.id);
+        if (_w) {
+          _w.close();
+        }
+        await Zotero.Items.erase(newNote.id);
+      }
+    }
+  }
+
   async convertNoteLines(
     currentNote: ZoteroItem,
     rootNoteIds: number[],