diff --git a/browser/components/MarkdownEditor.js b/browser/components/MarkdownEditor.js
index 0c2e291ed..65fdb1bc6 100644
--- a/browser/components/MarkdownEditor.js
+++ b/browser/components/MarkdownEditor.js
@@ -19,10 +19,10 @@ class MarkdownEditor extends React.Component {
     this.supportMdSelectionBold = [16, 17, 186]
 
     this.state = {
-      status: props.config.editor.switchPreview === 'RIGHTCLICK' ? props.config.editor.delfaultStatus : 'PREVIEW',
+      status: props.config.editor.switchPreview === 'RIGHTCLICK' ? props.config.editor.delfaultStatus : 'CODE',
       renderValue: props.value,
       keyPressed: new Set(),
-      isLocked: false
+      isLocked: props.isLocked
     }
 
     this.lockEditorCode = () => this.handleLockEditor()
@@ -75,6 +75,7 @@ class MarkdownEditor extends React.Component {
   }
 
   handleContextMenu (e) {
+    if (this.state.isLocked) return
     const { config } = this.props
     if (config.editor.switchPreview === 'RIGHTCLICK') {
       const newStatus = this.state.status === 'PREVIEW' ? 'CODE' : 'PREVIEW'
diff --git a/browser/main/Detail/MarkdownNoteDetail.js b/browser/main/Detail/MarkdownNoteDetail.js
index b4e7a5b34..eed40cb31 100755
--- a/browser/main/Detail/MarkdownNoteDetail.js
+++ b/browser/main/Detail/MarkdownNoteDetail.js
@@ -41,9 +41,10 @@ class MarkdownNoteDetail extends React.Component {
         title: '',
         content: ''
       }, props.note),
-      isLockButtonShown: false,
+      isLockButtonShown: props.config.editor.type !== 'SPLIT',
       isLocked: false,
-      editorType: props.config.editor.type
+      editorType: props.config.editor.type,
+      switchPreview: props.config.editor.switchPreview
     }
     this.dispatchTimer = null
 
@@ -63,6 +64,9 @@ class MarkdownNoteDetail extends React.Component {
     })
     ee.on('hotkey:deletenote', this.handleDeleteNote.bind(this))
     ee.on('code:generate-toc', this.generateToc)
+
+    // Focus content if using blur or double click
+    if (this.state.switchPreview === 'BLUR' || this.state.switchPreview === 'DBL_CLICK') this.focus()
   }
 
   componentWillReceiveProps (nextProps) {
@@ -292,7 +296,7 @@ class MarkdownNoteDetail extends React.Component {
 
   handleToggleLockButton (event, noteStatus) {
     // first argument event is not used
-    if (this.props.config.editor.switchPreview === 'BLUR' && noteStatus === 'CODE') {
+    if (noteStatus === 'CODE') {
       this.setState({isLockButtonShown: true})
     } else {
       this.setState({isLockButtonShown: false})
@@ -318,7 +322,8 @@ class MarkdownNoteDetail extends React.Component {
   }
 
   handleSwitchMode (type) {
-    this.setState({ editorType: type }, () => {
+    // If in split mode, hide the lock button
+    this.setState({ editorType: type, isLockButtonShown: !(type === 'SPLIT') }, () => {
       this.focus()
       const newConfig = Object.assign({}, this.props.config)
       newConfig.editor.type = type
@@ -362,6 +367,7 @@ class MarkdownNoteDetail extends React.Component {
         storageKey={note.storage}
         noteKey={note.key}
         onChange={this.handleUpdateContent.bind(this)}
+        isLocked={this.state.isLocked}
         ignorePreviewPointerEvents={ignorePreviewPointerEvents}
       />
     } else {