Changing default Attribute features

While displaying the History dialog of an object, if one clicks a 'Modify Object Attribute: Object Text' history item, the 'Details of selected history record' pane displays two sub-panes, 'From:' and 'To'.

Similarly, if one clicks a 'Modify Object: Create out-link' history item, the 'Details...' pane displays 'Link Information', followed by details of the link that was created.

Finally, if one clicks a 'Comments' item, the 'Details...' pane displays 'Comment', followed by the action that was taken, such as 'Cleared suspect out-link to object CA-24 in '/Traceability Games/Module CA'.

While dxl can be employed to obtain the the contents of the 'Details...' pane for the 'Modify Object' histories, I have been unable to dig out a dxl method of obtaining the 'Comment' data.

Has anyone been successful in this?
Curiously, I have been able to successfully add a comment to an object's history.
 

Object o = current
addHistoryComment(o, "I just added a history comment")

dedawson - Mon May 21 14:33:47 EDT 2012