Band groups let the player enable and disable sets of bands with the click of a button.

The problem:
Players often need to switch between two separate tasks when folding proteins, and often these tasks use different sets of bands. So the player will disable old bands, make new ones, disable the new ones, and then lose track of which are new because they are all gray.

Solution:
Allow for grouping of bands.
By default, bands are "ungrouped." New groups are made and listed in the band-group toolbox. From the toolbox, bands can be dragged from ungrouped to group1, for example. Groups can be enabled and disabled, and hidden from view in the band-group toolbox.