Have been using v104 and am quite impressed with your overall layout. Here are a few of my constructive suggestions.
You seem to have everything under control except for the mouse pointer data. If you could display the mouse pointer data only while the mouse is on or very near a waveform data point (displays the nearest waveform data point data only), then that would be fantastic. With the current mouse pointer operation, most of the mouse pointer data is meaningless. Those cursor lines add unnecessary confusion.
If you can do the above, then another suggestion would be that when the user clicks on the mouse pointer location (while mouse pointer waveform data is present) then that becomes the reference for other mouse pointer locations that also display waveform data (now display and leave the cursor lines at this reference location). You could display both the current mouse pointer data and the relative mouse pointer data (in parenthesis, also no cursor lines for current mouse location). If you click the mouse again while waveform data is present, then that becomes the new waveform reference location. If you double click while on a waveform location then the mouse reverts back to pointer only and the parenthesis and reference offset data disappear. This would replace the need for a cursor system, and is used by many CAD programs.
The other suggestion would be to have a button to center the trigger location on the screen. I do believe that you have everything else covered. Oh yes, the help button should also display the version number.
The application is looking very good. Sorry it took me so long to review. 