Histograms
The Histogram control is a powerful tool for real time analysis of the ECUs parameters - useful for fault finding diagnostics as well as tuning transients such as acceleration enrichment or perfecting the PID settings for closed loop boost control.
Right clicking an entity on the entity tree and selecting “Histogram” will add a single channel histogram view to the current tab.

When the control is resized to a small enough size, it will show only the first channel, and also the current highest and lowest values, as shown in the picture above, on the left - for the O2 RAW reading.
When extended to a large enough size, it will show the full featured histogram control. The full feature mode also shows the axis values, as well as allowing up to four channels of data to be shown on one control.
To change the displayed channels, right click the histogram and use the ‘Channels’ dialog to select which data entities you would like to show.
You can also change the displayed time frame from the right-click Time Frame menu - allowing you to show varying ranges of history - useful for using a histogram for longer term recording for example of power run/pulls when tuning.
Another useful function is that by pressing Ctrl-P on the currently selected histogram, the real time feed is paused (or resumed), allowing easier instant review.