[Zope] Structured Text

[Tom Deprez]

Hi,

Does somebody has experience with modifying STX in such a way that it only
effects some parts of the Zope Tree?
ie. I'm looking for a way to make STX showing pictures (I managed that), but
I want to make it so that all pictures have the same width and height
(independend on the real height/width of the picture) and a link when
clicked on the image so that the full image can be shown....
I've looked for all the information I could get, but unfortunately it looks
like I miss some skills here.
 My question: is there somebody who can give me a direction, hint, .... etc?

Thanks,
Tom.