I am currently making a medieval cannon, and I have been naming all the parts of the cannon, also I grouped all parts into different groups for easier recognition. For example I grouped all components of the wheel together as one group (e.g. Rim, Disc etc.) But how can I 'group all groups' together as the final product in order to publish my model. Any help is appreciated.
Objects can belong to more than one Group. You can simply select all objects you need and group them into a MASTER_Cannon group that can be used for appending/linking.