Once opened the Event Object Form, located inside the filter widget (i.e. over the tabs), there are more/less standard parameters - such as Code, Name, Description, Creation Date, Last Edit Date, Enabled - the ones you need to pay more attention to are Groups, Item Nature, Allow Scheduling Overlap, Task, Maximum Duration and Last Execution Result.
Parameters
In the Parameters tab based on the foo selected in the widget filter parameter, can be specified the Task's parameters needed to make the Event execute the Task.
Logs
The Logs tab displays all the logs based on the event execution. To mention that the log have not only generic information about the event execution, but also any error messages occured to it.
Scheduling
In the Scheduling tab is possible to insert a schedule (with the buttons placed on the Ribbon) from a dedicated window.