Conditional Formatting - Multiple Rows and Columns

Hi. Can some one please help me figure out how to do some conditional formatting on multiple rows and multiple columns. For example, I have over 2000 records with employee names and the employee status (full time, part time). The employee name could show up numerous times depending on positions and other factors. The first step would be to highlight or group by the employee name, then by their status. Attached is a spreadsheet of what the end result should look like. The ultimate goal is to hightlight those employees that went from a PRN status to a RFT status, however they could of had multiple status' in between. I'm not sure how to do this. Any suggestions? Any help would greatly be appreciated. Thanks.