Here is some sample code. Adding the first insurance company works fine, but when i try to add the second i get an error.
message.setNode("IN1-1", '1');
message.setNode("IN1-4", insName); // NAME_OF_INSURANCE_COMPANY
...
message.setNode("IN1[2]-1", '2');
message.setNode("IN1[2]-4", insName2); // NAME_OF_INSURANCE_COMPANY2
The error i get is this: WrappedException: Wrapped com.qvera.qie.web.exception.MessageModelException: Node not found: IN1[2]-1