It would be great if we could improve the visualizer: 1- The visualizer gives missing semicolon errors on using async/await. (Provide support for async/await. Make it work) 2- Shortcuts like Ctrl+K,Ctrl+C to comment multiple lines and CTRL+K,CTRL+U to uncomment are not supported on the visualizer. If we could work on these 2 issues that would make the visualizer far more useful #48