Moving Voxels in Space


I am currently doing an University project and I have to move Voxels in Space by user interaction.
So I now the node, where the Voxels are in and I would like to rotate them around a point in space.

I am a little stuck, because I don’t know how I may access the Brick under the Node and than the Voxels or alter the position of the voxels.

May you tell me, if it is possible and how?

I know there are techniques how to move particles, but I need to move parts of the volume.

Kind regards