Melvin Klassen figured out how to add long addresses in the ADD command.
Perhaps it will be useful to someone else.
 
The address to be added is:
[log in to unmask]
Mantle, Mickey
 
The job to do it is:
 
//SUBMIT JOB PW=yyyyy
ADD xxxxx-L DD=NEW
//NEW DD "/I=W/G=MICKEY/S=MANTLE,
// [log in to unmask] Mantle, Mickey"
//EOJ EOJ