Hello,
It's exactly the question :
I 'm extracting from my archaeological field profiles from my differents archaeological levels, i have multiples dem georeferenced, and i'm able to extract from QGIS (VoGIS profil tool and terrain profile adds on) multiples profiles at the same time without deformation or rescaled after some manipulation. The issue is that rescaling is not precise inside metashape and being able to do that directly inside the software would be quite time saving.