Grouping sites

[bajcik]

Hi,

I like the jump very much. But there is one thing.
I use tags, but I don't like using the menu (two additional mouse clicks).
It would be awesome to have a possibility to organize sites into groups and just scroll & click.
Just like this:

site1 site2 site3

site4 site5 site6 site7 site8

site9 sitea

What do you think?