I'd like to suggest being able to group tabs based on Tags rather than just on a single Tab Group name. This way I could add a single connection to multiple Tab Groups (e.g. I could have a group for a specific domain and another group for all mail servers [regardless of domain] and a single server could be in both).
Thank you for the suggestion. I'm not sure how easy it would be for us to implement but I will add this to our feature list.