[Zope] ZPT & contents slot

[John Poltorak]

If I create a macro which defines a slot called 'content', is there any 
way to have that slot populated by a file with a specific name if it 
exists in a folder? 

What I'd like to do is create a structure text file, in each of the 
folders A B C and have it automatically loaded into a content slot of a 
master template whenever the options A B C are selected.

Can I do that, and if so how?

I have spent all day looking at ZPT references and have no idea if what 
I'd like to do is possible.

-- 
John