Click "Profile" and then click "Proxy Servers".
Cilck "Add" to set your proxy information.
Fill in your proxy information and select the proxy Protocal. If you use an account-password proxy, turn on Authentication.Then click "Check" to test if the proxy is available. After this,click "OK" to save your proxy server.
Click Proxification Rules.Then you can choose to set a global proxy or a proxy for a specific application.