sidebar question

I have several group pages. Each group page has its own sidebar, which means the contents of each sidebar are different. In addition, some groups need right sidebar, some need left, and some need both.

Group 1:
   (left sidebar)
    item 1
    item 2
Group 2:
   (right sidebar)
    item 3
    item 4
    item 5
Group 3:
   (left sidebar)
    item 6
    item 7
   (right sidebar)
    item 8

Any one knows how to realize these with Graphene theme?

Thanks.