add extra items in the band's view

Is it possible to add extra items in the general band's view?

Would like to add listings of attended concerts/festivals preferably with date and venue per band.

Maybe it's already possible in the latest edition but can't figure it out and else maybe as suggested feature?

And another thing which might require some more work ;) possibility to view relations between bands as in mutual members, sort of treeview, so you can hop from one band to another by following the links?