Probably I'm misunderstanding the question (maybe I should take the decision to improve my bad English!!!).
If you want to move the section (in order to align it to the previous one)... simply moce the object!
The section is a simple high parametric library part that can be move like the standard ArchiCAD object.
The first time you generate this longitudinal section, you have to click to position it but you can always change this position by using the standard ArchiCAD tecniques...
But I'm sure I misunderstood what you are asking for...
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Fabrizio
Fabrizio Diodati
Graphisoft Italy Srl | Via Rossignago 2/A Spinea Venezia 30038 Italy