I am trying to align two of the same samples that were injected at different dates (months apart) as I am noticing a slight shift in retention times between the two despite the samples being the same. I tried offsetting the two overlaid chromatograms to try and match one another but it never looks as nice as it would when simply selecting signal points and aligning the two chromatograms as one could do in chemstation. I tried searching in the manual and the website on how to do this and couldn't find anything. Does anyone know if it is possible to do this in the non-chemstation version of Openlab? Thanks for your help!