Use CheckBoxCellEditorMockup2 (/com.xored.q7.quality.mockups.swt/src/org/eclipse/jface/viewer/CheckBoxCellEditorMockup) and run it as AUT.
Try to modify second column.
Q7 records the following:
If you add an assertion for column value and run the test - it fails because wrong value is set during replay.
If you comment get-cell 0 1 | mouse down -with Left -count 1 command - test passes ok.