1. Start Teamwork Server. The Teamwork Server dialog appears.
2. Click the License Manager button.
3. In the Teamwork Server License Manager dialog, click the Select License Key Files button.
4. In the Select License Key Files dialog, select the license key file and click Open.

Changing the server license key from the command line

1. Stop the Teamwork Server.
2. Start the Teamwork Server from the command line. Add the following argument:
"-changeKey -key:<path to the key file location>".

This is the sample for the Windows OS:
teamwork_server_nogui.exe -changeKey -key:C:\MagicDraw_16_0_TeamworkServer_key.xml