Open markdown preview in separate panel for the right-click option "Show Markdown Preview" for a markdownfile in editor mode

packages/docmanager-extension/src/index.ts

@@ -616,7 +616,8 @@ function addCommands(
       }
       return commands.execute('docmanager:open', {
         path,
-        factory: MARKDOWN_FACTORY
+        factory: MARKDOWN_FACTORY,
+        options: args['options']
       });
     }
   });

packages/fileeditor-extension/src/index.ts

@@ -407,7 +407,12 @@ function activate(
         return;
       }
       let path = widget.context.path;
-      return commands.execute('markdownviewer:open', { path });
+      return commands.execute('markdownviewer:open', {
+        path,
+        options: {
+          mode: 'split-right'
+        }
+      });
     },
     isVisible: () => {
       let widget = tracker.currentWidget;