Hi Roberto,
without Geerten around at the moment and no test data it’s hard for us to work out what is going on here - clearly something in the import routine has ben tightened up.
I think for the moment the easiest thing would be to read in your pseudo-3D into the program. You can put this into a SpectrumDisplay and navigate through the planes if you simply want to look at them.
If you want to start picking peaks etc., you will need to right-click on the spectrum in the sidebar where you should be offered the option to Split Planes to SpectrumGroup. This will basically split your 3D into a set of 2Ds and place them all in a SpectrumGroup. This will write new data to your disk (.ndf5 files), but you can get rid of any planes you are not interested in.
Not massively elegant, but our current way of dealing with pseudo-3Ds.
If you are interested, I think @LucaM has a macro he wrote for someone looking at CEST data which will extract 1D slices from pseudo-3D datasets. I’m sure he’d be happy to share it.
Best wishes,
Vicky