In order to report your expenses; you need to enter to the diary hour report
then click on Add row


Then you need to feel it; in the end you will have the option for Expenses



After you click on Expenses a new window will open for you, there you need to fill you expenses. 
when you finish and close the windows, you will see that the expenses will be highlight in yellow. 
Then click on save   



If you want to delete your Expenses, you must enter to expenses, delete them, close and then save