In the top right corner – below the filter button – you can change your report period and your target group.
To change your target group, just click on the button showed below, and click on edit. Then change the attributes of your target group and click "Save" in the upper right corner.
If you want to change the report period, just click on button next to the target group button. Then click edit, and change the report period in the new window that will appear. You are only able to select full weeks from Monday to Sunday in the system.
After changing the report period, remember to press "Save" in the upper right corner.
Changes in your target group are updated immediately, while changes in your report period are updated with a 15-20 minutes delay. Also, please note that it is only possible to review a period of 12 weeks at a time.