It will depend if the data collection is for AEP or Adobe Analytics.
For AEP as compared with Adobe Analytics, where events would be assigned based on event1,event2,etc
You would have to create a schema to capture the event as a string value or a measure data type where the value is 1 or 0.
A good starting point is to review the out of the box Field Groups otherwise you can always create your Schemas from scratch.