Programmatic access to app functionality

[mfleming]

Thank you roadrunner, that sounds like a reasonable solution to my problem. I would certainly rather create a composition of applications, rather than (re)implementing some application functionality from scratch.

Perhaps my mental model of apps as classes, saved apps as instances and key redefinitions as method overload is faulty. Is there a document or thread someone would recommend that provides a clear understanding of an app and its environment?

Many thanks,
~Mark