Hi Sherry,
You are on the right track for multiple campuses. We do recommend a ministry for each campus, and then tie them together with the same activity type.
We have a Best Practice for Multi-Campus document in our F1 support portal. In the support portal, if you open AnswerID 282, you will find the document attached to that support ID.
Please let us know if we can help further.
Jeff Lewis
Delivery Manager