Cluster movement in a KTBH

[gardeningfireman]

This is probably a dumb question, but how does a wintering cluster move about in a TBH without totally breaking up the cluster? In a Langstroth, the whole group can just move up, but in a TBH, how do they move as a unit?

[Michael Bush]

Sideways.  They actually can move around the ends and the bottom more easily as there is no wood to make a barrier, just comb...