When entering various spectra for one molecule, it seems that still, the literature entry needs to be repeated? Also, how about visibility of (already) existing entries from the previous spectrum of the same molecule (i.e. couldn't CAS #, names and lit. be pre-entered as is for the mandatory fields field, solvent etc.??). It would make also make sense to skipe repetitive steps that are not needed (i.e. literature, metadata) and make them only visible upon clicking on the corresponding timeline field.