First of all, open your profile page.
Activate the Admin mode by clicking the small arrow next to the Administrator sign.
If you need to assign an employee to be the workgroup/project owner instead of yourself, just edit the workgroup settings.
Go to the Workgroup and projects section, select the workgroup/project and click the About workgroup/project button.
Select the Edit workgroup/project option in the Actions menu.
Click Edit in the Workgroup/project owner field and select an employee.