ServiceDesk Plus 8.1 Report Time Spent of each technician

ServiceDesk Plus 8.1 Report Time Spent of each technician

Good day.
How can I get a report which indicates time spent by every technician worked on specific request? For example, a techician worked on a request, then the request was re-assigned to another technician,etc, i need information about every technician (how many time he spent) worked with the request. and need also the time and date when the technician was put any comment in the worklog..
Thank you

sample  :

technician  - request id - time aknowledge by technician -  status request  -   worklog time when they did  put any comment, time interval  -  techician worked on a request, then the request was re-assigned to another technician

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