Alternative could be hashtags or labels for the groups.

But nesting or "spaces" would also be awesome!!

Hi Tom,

Thank you for contributing to Supatabs!

What do you think about having "spaces" just underneath the search bar? Each space (kind of like a folder) would have its own groups and respective tabs

Let me know what you think and thanks for using Supatabs!

Agree that nesting groups would be very useful!