Timesheets and the "Case Management" app

Hello All
I have two question:

  1. Is possible to manage timesheets of all my employees? I want to enter the time they have spent on tasks and/or projects by myself.
  2. I can’t find the app named « Case Management »:
    https://docs.axelor.com/abs/5.0/functional/case-management.html

Thank You in advance for help.
Best regards
/jg