You can update the code to do it.
There are some elements: imagingLog table in FOG database, pre_Stage1.php and post_Stage3.php webservices. Those webservices are located in /var/www/fog/service.

When FOG makes a tasks, those tasks write a log in imagingLog table (make a checkin/checkout). Well, the fog script, that runs in the computer, calls to a webservice when the task begin. This webservice is pre_Stage1.php and makes the checkin. When the task ends, the script calls to post_Stage3.php to make a checkout. You must update the checkin and checkout functions to add the taskType in the imagingLog (you must add a new column in imagingLog table), and filter the task type. After this, you can make a personal report.