Accessing Fields and EventOuts of the other Script - II
Events generated by setting an eventIn on a node are sent at the completion of the currently executing function.
The eventIn shall be assigned a value of the same datatype; no partial assignments are allowed. For example, it is not possible to assign the red value of an SFColor eventIn. Since eventIns are strictly write-only, the remainder of the partial assignment would have invalid field values.
Assigning to the eventIn field multiple times during one execution of the function still only sends one event and that event is the last value assigned.