Using Dropdown list or radio buttons

Hello everyone, kindly refer to attached spreadsheet in which I am trying to use a dropdown list or radio buttons for employees. What I am trying to accomplish is to use single worksheet to record time for all the employees instead of having one sheet for each. Whenever we select different employee from dropdown menu content of the working hours should automatically change and reflect different record for each employee. I dont know if this is possible but will highly appreciate if anyone will help me out.
Thank you!