I was wandering whether it would be possible to extend the list of adjustable parameters in the Image Parameter Adjuster node so that also the z-Position could be selected while the node is executing and made available as flow variable.
I know you meant the other Christian, but just a remark: This shouldn't matter at all, as each image (after it was read using the Image Reader) is transformed to a unified KNIME Internal Format (which bases on ImgLib2).