You can also try these related scripts:

• Markdown toolbar for gitlab.com - Markdown toolbar for gitlab.com issues
• Gitlab Default dropdown to Https - Make default clone method is HTTPS instead of SSH
• Redmine快速标记完成 - try to take over the world!
• GitLab Collapse Markdown - A userscript that collapses markdown headers
• GitLab Collapse In Comment - A userscript that adds a header that can toggle long code and quote blocks in comments