We use ISPConfig, but have one but we face one major challenge: not being able to work with multiple tabs. This prevents us from rolling out the product from our test environment to our production environment. Is this a feature on the roadmap? We've already encountered corrupt configurations a few times, just by quickly checking how it's configured at another customer's site.
The user sessions are cookie-based for security reasons. We do not plan to lower the security level to allow multiple user sessions to be opened in the same browser by encoding them into the URL only. If you want to have multiple users logged in simultaneously from your PC, then you must either use a browser mode that does not share cookies with other Windows, like the Incognito mode, or use different browsers.
