To enter a weeks worth of time in one setting use the Time sheet feature. From the top of the main billing screen
chose the Time Sheet hyperlink. A form like this should appear:

To add time for the week first enter the week start date in the top
left corner. This is the first day of the
week for the period you wish to enter time for. The date will default
to last week's start date. Next click in
the first white cell of the time sheet grid. A pull-down list will
appear. Select the Project you wish to enter
hours for. Tab over and similarly enter a Task or Client if you wish.
Then tab over to enter the number of hours
worked on that project for the week. Include a comment note for the
work if desired. Repeat for any additional
projects you have billed time to for the week. When you are finished
press the Save button (the icon of the purple floppy disk in the upper left corner). This will
save the
time data to the database.
Time sheet data can also be edited using the time sheet entry form. If you select a week for which you already have
time saved this time will show up on the time sheet form. You may change this time or add new time. When you save
the changed time sheet the original records will be replaced by the new records.
To return to the main billing screen press the Bill Time hyperlink at the top of the screen.