You may be able to log work on this page.
If you created this process, or are working on it, you can log almost anything.
If not, you can take tasks and then become a worker on this process, or you can log unplanned work.
Each of the buttons has tool tips that explain it more.
The sections on the page correspond to the process context or pattern. If you think this process should have something it doesn't, ask an admin for changes to the process pattern.
If this process does not have a process pattern, you will not be able to log anything. Change the process and add a pattern.