Is there any way to group cases, other than using tags? We currently need this for an implementation where case management is used to fulfill wishes for children with chronic diseases. The organization has cases where they need to organize events on a high level for a whole group of children (booking hotels, travel planning etc.) and do some of the planning individually per child with a very different set of activities (communication with parents, getting authorizations etc.). I feel that tags are not sufficient in this case and I would prefer to have a parent case with child cases assigned to it - or at least a group so we would have better selection options in the system. But groups are only available for contacts (?)
There isn't anything exactly like what you're looking for. You can set a case as related to another case, so your parent case could be related to all its child cases. On Manage Case add an activity of type "Link Case", and then on both Manage Case screens that linkage will appear.
You can add Custom Fields on Cases. It may not be a lot of hard work to have a Custom 'reference' field created that lets you link one case to another, but I haven't verified that with our tech experts