Merge 4th distance
Requested by Ralf Schweins on 12th June 2018.
Ralf did an experiment where exceptionally, he has done measurements using 4 different detector distances with the same wavelength (see figures). In the merging tab, the option to 'Show 4th configuration input fields to adjust' is not active, probably because this was thought to handle the case where the 4th configuration was measured with a different wavelength. Is it possible to use this also in this case?