Login to the Symantec Protection Center : 

1 - Select Computer tab.

2 - Click on Add a computer.

3 - The Client Installation Wizard will pop up.

• Select the group which will host the client.
• Select the Protection type to install (Virus & Spyware, Network treat protection).

Next

• Select your preferred installation method (in this case we will select Remote Push installation).

Next 

• You are prompted to select all computers to deploy using the Network discovery (Browse Network / Search Network).
• Select your clients and add them to the Install Protection Client's panel.
• It will ask you once the Admin login of the Domain / Workgroup. 

Next

• The Client Installation Packages are being sent to the selected machines.
• There will be a log at the end to determine the completion status (Sent or not).

4 - You will then see after your client in the Clients Tab under the group you defined.