In Master Data / Resources, a resource group is created and the individual machines are then stored. In the resource group, you must insert a resource type "Group" and store this in turn in the routing sequences, i.e. dispatching is performed to a group, not to a machine/person.
You only actually specify which machine processes this work sequence during planning.
Advantage: Accurate planning is possible at machine/person level.
Disadvantage: This accurate planning takes up time on the user side and is not always advantageous.