drop down in the top center of the plot area flips between time and distance on the horizontal axis.
I think the plot scales are auto zoning.
I dont think I have vertical speed on my screen. hmm ...
a negative vertical speed should be a descent, in a sensible world at least
I hate the plots in TC, good thing the files open as text files and are well annotated.
I'll be writing my own extractor/plotter for viewing the data. long live MATLAB