Globally for all events: wrapper.event.default.command.block property, or
For a specific event: wrapper.event.<event_name>.command.block property.
The "<event_name>" component of the property name can be
either the keyword "default",
or one of the Event Types.
By setting the default property,
all Event Types which are not set explicitly will take on that value.
The value of the property will be ignored for the following events as they can not be delayed:
Please see the Event Commands documentation for more examples
and an explanation of how the various event properties can be used together.
Reference: Event Commands
The Java Service Wrapper provides a full set of configuration properties that allows you to make the Wrapper meet your exact needs.
Please take a look at the documentation for the individual properties to see all of the possibilities beyond the examples shown above.