Tony Dye wrote:

Think of everything in Optio as an object.

 

Code Before says Do this before Optio process that Object, Code after says do this after optio has processed that Object.

 

This is correct up to a certain point. for instance the code before/after of objects in the formatting are extra special; make sure you do not change the amount of printed lines there (e.g. add/remove lines).
There are a lot of caveats in code before/after, make sure you test carefully if you use them.