Hi Magnethead, I am posting from [MESTRELAB][1] support department. I would like to inform you that with the current version of [MestReNova 6.0.3][2] it is still not possible to select the distance between the traces of a stack plot, but this is already in our wish-list, so I hope that it will be implemented shortly. For further information about stacked plot, please take a look at these tutorials: http://mestrelab.com/data-analysis-arrayed.html http://mestrelab.com/stacked-spectra.html or watch this [video][3] If you need further information or assitance, please do not hesitate to [contact us][4] Thanks in advance. [1]: http://mestrelab.com/ [2]: http://mestrelab.com/Products/Mnova/Details.html [3]: http://mestrelab.com/video-stacked-spectra.html [4]: http://mestrelab.com/customer-support.html