The screen, part by part

• Header. The file name, how many rows were kept, the build number, the two pickers (Layout and Custom Gauges), Reset Zoom, the Analyze and Layout menus, and Close.
• Channel list on the left, on every tab.
• Tabs: Graph, Gauges, Histograms. They share one log, one zoom window and one cursor, so a cell you click in a table and a moment you hover on a graph are the same moment.
• Overview bar at the bottom: the whole log end to end, with a red window showing what you are zoomed into, a playhead at the cursor, and a mark at your race zero.
• Race readout left of that bar, for zeroing the time axis at your launch.

Both picker buttons show the loaded item underneath their caption, with a * after the name when you have changed something that is not saved yet.

Move the pointer over any graph and a vertical line follows it on every panel at once. The channel list values, the cards, the gauges, the legends, the race time and the live dot on a histogram all read that instant. The position sticks when you move away, so you can read the numbers without holding the mouse still.