- Go to the online dashboard.
- Click on the Weight widget on the left.
- Select Options at the top right corner and click on Set a target weight.
- Use the slider to set your desired weight and click Ok.
- Use the slider to choose the pace at which you would like to reach your goal and click Save.
https://support.withings.com/hc/en-us/sections/6216071736593-Withings-Web-App
https://support.withings.com/hc/en-us/sections/200602457-Features