* Select the "Correlated Jitter" model somewhere (platform motion, mount, etc.)
* Click the "Edit" button
* Notice how both the "Add" and "Delete" buttons are disabled. We need the "Add" button to be enabled so the user can add some data. Otherwise the right-click "Import" mechanism is their only option.
Furthermore when correctly enabled, the "Add Entry" and "Delete Entry" actions do not appear to do anything.
Other things to improve:
* The initial plot window is a mess because the initial ranges are poor.
* The "import file" mechanism doesn't user the more robust text import wizard.
QDGraph needs an "impulse" style to plot this data correctly.
Make sure the auto-scaling gets reset if the user deletes all the entries.