In ADE Explorer (and ADE-L) there is an option to save all voltages or currents within a subcircuit instance ("Outputs -> To be saved -> Select by Subckt Inst"). I can't find this feature in ADE Assembler.
My workaround is now to dive from the Assember view into the Explorer view and select this feature there. But maybe there is also a way to do this in Assembler directly?