For effective time tracking implementation you need to generate reports to calculate time in projects. You also should regularly remind your team that data from timesheets are useful for the company and for people.
In order to create the custom summary, select the Reports link from the left menu.
You will be redirected to so-called reports generator. Here you can create various reports regarding your projects or tasks.
Next, decide which of your projects should be considered in the report. You can select all your projects, or choose a single project by typing its name.
Now you can select people you want the report to involve. Just like by assigning people to task, you can select everyone from your organization, single group of people, or single user.
Last but not least, you can also use some other filters to select the specific information: like timeframe, active/archived, invoiced/unvoiced, billable/nonbillable time.