diff --git a/repo/core/buttons.js b/repo/core/buttons.js
index e50de06..bae94cd 100644
--- a/repo/core/buttons.js
+++ b/repo/core/buttons.js
@@ -15,7 +15,7 @@ module.exports = (store) => {
     buttons = {
       element: helpers.createElement('<div class="window-buttons-area"></div>'),
       insert: [
-        ...((store('mods', {})['72886371-dada-49a7-9afc-9f275ecf29d3'] || {})
+        ...((store('mods')['72886371-dada-49a7-9afc-9f275ecf29d3'] || {})
           .enabled
           ? ['alwaysontop']
           : []),
diff --git a/repo/core/client.js b/repo/core/client.js
index 4d683ca..3315093 100644
--- a/repo/core/client.js
+++ b/repo/core/client.js
@@ -19,12 +19,16 @@ module.exports = (store, __exports) => {
   // additional hotkeys
   document.defaultView.addEventListener('keyup', (event) => {
     if (event.code === 'F5') location.reload();
-    // open menu on hotkey toggle
-    const hotkey = toKeyEvent(store().menu_toggle);
-    let triggered = true;
-    for (let prop in hotkey)
-      if (hotkey[prop] !== event[prop]) triggered = false;
-    if (triggered) electron.ipcRenderer.send('enhancer:open-menu');
+    if (
+      !(store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled
+    ) {
+      // open menu on hotkey toggle
+      const hotkey = toKeyEvent(store().menu_toggle);
+      let triggered = true;
+      for (let prop in hotkey)
+        if (hotkey[prop] !== event[prop]) triggered = false;
+      if (triggered) electron.ipcRenderer.send('enhancer:open-menu');
+    }
   });
 
   const attempt_interval = setInterval(enhance, 500);
@@ -43,7 +47,11 @@ module.exports = (store, __exports) => {
       document.body.classList.add('snappy-transitions');
 
     // frameless
-    if (store().frameless && !store().tiling_mode && !store().tabs) {
+    if (
+      store().frameless &&
+      !store().tiling_mode &&
+      !(store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled
+    ) {
       document.body.classList.add('frameless');
       // draggable area
       document
@@ -56,7 +64,9 @@ module.exports = (store, __exports) => {
     }
 
     // window buttons
-    if (!store().tabs) {
+    if (
+      !(store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled
+    ) {
       const buttons = require('./buttons.js')(store);
       document
         .querySelector('.notion-topbar > div[style*="display: flex"]')
@@ -153,7 +163,9 @@ module.exports = (store, __exports) => {
           '--theme--code_inline-background',
         ].map((rule) => [rule, getStyle(rule)])
       );
-      if (store().tabs) {
+      if (
+        (store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled
+      ) {
         electron.ipcRenderer.sendToHost(
           'enhancer:set-tab-theme',
           [
@@ -179,7 +191,7 @@ module.exports = (store, __exports) => {
     );
     electron.ipcRenderer.on('enhancer:get-menu-theme', setThemeVars);
 
-    if (store().tabs) {
+    if ((store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled) {
       let tab_title = '';
       __electronApi.setWindowTitle = (title) => {
         if (tab_title !== title) {
diff --git a/repo/core/menu.js b/repo/core/menu.js
index bb5913f..60a0d20 100644
--- a/repo/core/menu.js
+++ b/repo/core/menu.js
@@ -426,11 +426,13 @@ window['__start'] = async () => {
             };
     mod.elem = helpers.createElement(`
     <section class="${
-      mod.tags.includes('core') || enabled ? 'enabled' : 'disabled'
+      mod.id === '0f0bf8b6-eae6-4273-b307-8fc43f2ee082' || enabled
+        ? 'enabled'
+        : 'disabled'
     }" id="${mod.id}">
         <div class="meta">
         <h3 ${
-          mod.tags.includes('core')
+          mod.id === '0f0bf8b6-eae6-4273-b307-8fc43f2ee082'
             ? `>${mod.name}`
             : `class="toggle">
               <input type="checkbox" id="enable_${mod.id}"
diff --git a/repo/core/mod.js b/repo/core/mod.js
index 9859812..6311973 100644
--- a/repo/core/mod.js
+++ b/repo/core/mod.js
@@ -14,12 +14,6 @@ module.exports = {
   version: require('../../package.json').version,
   author: 'dragonwocky',
   options: [
-    {
-      key: 'tabs',
-      label: 'tabbable windows',
-      type: 'toggle',
-      value: false,
-    },
     {
       key: 'openhidden',
       label: 'hide app on open',
@@ -80,6 +74,12 @@ module.exports = {
       type: 'input',
       value: 'Alt+E',
     },
+    {
+      key: 'default_page',
+      label: 'open to default page id:',
+      type: 'input',
+      value: '',
+    },
   ],
   hacks: {
     'main/main.js': require('./tray.js'),
diff --git a/repo/core/render.js b/repo/core/render.js
index 32437df..81363be 100644
--- a/repo/core/render.js
+++ b/repo/core/render.js
@@ -18,7 +18,8 @@ const url = require('url'),
   koMessages = require(`${__notion}/app/i18n/ko_KR/messages.json`),
   schemeHelpers = require(`${__notion}/app/shared/schemeHelpers.js`),
   React = require(`${__notion}/app/node_modules/react/index.js`),
-  ReactDOM = require(`${__notion}/app/node_modules/react-dom/index.js`);
+  ReactDOM = require(`${__notion}/app/node_modules/react-dom/index.js`),
+  { toKeyEvent } = require('keyboardevent-from-electron-accelerator');
 
 const insertCSP = `
   const csp = document.createElement('meta');
@@ -28,7 +29,7 @@ const insertCSP = `
 `;
 
 module.exports = (store, __exports) => {
-  if (store().tabs) {
+  if ((store('mods')['e1692c29-475e-437b-b7ff-3eee872e1a42'] || {}).enabled) {
     class Index extends React.PureComponent {
       constructor() {
         super(...arguments);
@@ -156,22 +157,44 @@ module.exports = (store, __exports) => {
         const list = new Map(this.state.tabs);
         while (this.state.tabs.get(id)) id++;
         list.delete(id);
-        if (this.views.html[id]) {
-          this.views.html[id].style.opacity = '0';
-          let unhide;
-          unhide = () => {
-            this.views.html[id].style.opacity = '';
-            this.views.html[id].removeEventListener('did-stop-loading', unhide);
-          };
-          this.views.html[id].addEventListener('did-stop-loading', unhide);
-          this.views.html[id].loadURL(this.views.current.$el().src);
-        }
-        this.openTab(id, list);
+        console.log(
+          store().default_page
+            ? `notion://www.notion.so/${store().default_page}`
+            : this.views.current.$el().src
+        );
+        this.openTab(id, list, true);
       }
-      openTab(id, state = new Map(this.state.tabs)) {
+      openTab(id, state = new Map(this.state.tabs), load) {
         if (!id && id !== 0) return;
         this.views.current.id = id;
-        this.setState({ tabs: state.set(id, true) }, this.focusTab.bind(this));
+        this.setState({ tabs: state.set(id, true) }, async () => {
+          this.focusTab();
+          if (load) {
+            await new Promise((res, rej) => {
+              let attempt;
+              attempt = setInterval(() => {
+                if (!document.body.contains(this.views.html[id])) return;
+                clearInterval(attempt);
+                res();
+              }, 50);
+            });
+            this.views.html[id].style.opacity = '0';
+            let unhide;
+            unhide = () => {
+              this.views.html[id].style.opacity = '';
+              this.views.html[id].removeEventListener(
+                'did-stop-loading',
+                unhide
+              );
+            };
+            this.views.html[id].addEventListener('did-stop-loading', unhide);
+            this.views.html[id].loadURL(
+              store().default_page
+                ? `notion://www.notion.so/${store().default_page}`
+                : this.views.current.$el().src
+            );
+          }
+        });
       }
       closeTab(id) {
         if ((!id && id !== 0) || !this.state.tabs.get(id)) return;
@@ -733,16 +756,28 @@ module.exports = (store, __exports) => {
     window['__start'] = () => {
       document.head.innerHTML += `<link rel="stylesheet" href="${__dirname}/css/tabs.css" />`;
 
+      // open menu on hotkey toggle
+      document.addEventListener('keyup', (event) => {
+        const hotkey = toKeyEvent(store().menu_toggle);
+        let triggered = true;
+        for (let prop in hotkey)
+          if (hotkey[prop] !== event[prop]) triggered = false;
+        if (triggered) electron.ipcRenderer.send('enhancer:open-menu');
+      });
+
       const parsed = url.parse(window.location.href, true),
-        notionUrl =
-          parsed.query.path ||
-          schemeHelpers.getSchemeUrl({
-            httpUrl: config.default.baseURL,
-            protocol: config.default.protocol,
-          });
+        notionUrl = store().default_page
+          ? `notion://www.notion.so/${store().default_page}`
+          : parsed.query.path ||
+            schemeHelpers.getSchemeUrl({
+              httpUrl: config.default.baseURL,
+              protocol: config.default.protocol,
+            });
       delete parsed.search;
       delete parsed.query;
-      const plainUrl = url.format(parsed);
+      const plainUrl = store().default_page
+        ? `notion://www.notion.so/${store().default_page}`
+        : url.format(parsed);
       window.history.replaceState(undefined, undefined, plainUrl);
 
       document.title = localizationHelper
@@ -769,6 +804,26 @@ module.exports = (store, __exports) => {
     const __start = window['__start'];
     window['__start'] = () => {
       __start();
+
+      if (store().default_page) {
+        new Promise((res, rej) => {
+          let attempt;
+          attempt = setInterval(() => {
+            if (
+              !document.getElementById('notion') ||
+              !document.getElementById('notion').loadURL
+            )
+              return;
+            clearInterval(attempt);
+            res();
+          }, 50);
+        }).then(() => {
+          document
+            .getElementById('notion')
+            .loadURL(`notion://www.notion.so/${store().default_page}`);
+        });
+      }
+
       const dragarea = document.querySelector(
           '#root [style*="-webkit-app-region: drag"]'
         ),
diff --git a/repo/tabs/mod.js b/repo/tabs/mod.js
new file mode 100644
index 0000000..1585c43
--- /dev/null
+++ b/repo/tabs/mod.js
@@ -0,0 +1,19 @@
+/*
+ * tabs
+ * (c) 2020 dragonwocky <thedragonring.bod@gmail.com> (https://dragonwocky.me/)
+ * under the MIT license
+ */
+
+'use strict';
+
+// this is just a pseudo mod to "separate" the options
+// from the core module - the core still handles actually
+// making it work.
+module.exports = {
+  id: 'e1692c29-475e-437b-b7ff-3eee872e1a42',
+  tags: ['core', 'extension'],
+  name: 'tabs',
+  desc: 'have multiple notion pages open in a single window.',
+  version: '0.1.0',
+  author: 'dragonwocky',
+};