You say that the typed content would be pasted into the container... what file format would this be?
What I am thinking is that if it's a different format to jpg, you can get (via filemaker) the file type. Once you have the file type, you can use it to determine different output displays. For example, you could have two containers on top of eachother and hide one depending on the file type.
As for the actual scaling on a container for text content... I'd have to experiment with the container and how it displays the text...
not sure if this is helpful???
I'd leave that text in a text field. For any record one of the two fields will ba e empty so they can be stacked and set to slide up.
Container fields can be set to slide up only if top alignment is specified on the inspector's data tab and this is not the default setting for a container field.