Hi Brendan,

Would it be possible to change the y-axis minimum on the TIC plots to something other than zero (ie, make it a definable minimum). The Agilent QqQ data has high baseline signals (~40 counts for each transition monitored, >100 if you monitor 3 and look at the summed transition view for a peptide). When you try to zoom in on a weak signal, because the y-axis is anchored at zero, the baseline signal tends to "float" up higher in the plot (see attached ppt file of the light (red) peptide zoom on the far right).

Thanks!
Sue