From MagicaVoxel Community Wiki
Groups are used to handle large projects content more easily.
Two or more world elements merged / linked together.
- Elements of a group can be objects or other groups.
These elements are grouped or ungrouped in world editor.
A group limits extends to the elements inside of it.
A selected group can be renamed using the same menu as for objects.
- Groups can be moved the same way as objects.
World editor does not provides coordinates for groups, only a chequered ground as reference.
Selected groups are delimited by a white outline, while others by the color of their respective layer.
Elements part of a group don't have to share the same layer
- enter a selected group
- click on the group in the scene outline