It’s not very obvious that you can log in to Popcode, or that in general it’s possible to save your work. The most straightforward solution would be to expose a log in button that’s visible by default. Unfortunately, there isn’t a great place to put that in the current layout.
A few ideas, courtesy of @iamnickvolpe:
Always-open header + opening side dashboard
Clicking the gear would reveal the dashboard

Condensed always-open side dashboard
