RE: Implementing JAR files into Domino Andrei Kouvchinnikov 29.Apr.05 07:37 AM a Web browser Domino Designer 6.5.1Windows 2000
I am rather sure that it is not possible to show them in that menu.
To access functions available in your archive into an agent, you can include JAR archive as a part of your agent using "Edit Project". Or you can put JARs in "\jvm\lib\ext" folder of Notes.
In both cases you must know methods and functions parameters because you do not have type-ahead.