To replace the license you are using in the studio with a new license, proceed as follows:
From the studio menu bar, select Help > About License.
The [About License] dialog box is displayed.
Click Fetch to import a license from Talend Administration Center.
Make sure to define your connection information to Talend Administration Center correctly before you import the license.
Or, select the My product license is on the local file system and browse to the license.
A confirmation message is displayed prompting you to restart the studio with the new license.
Click OK to close the message and restart the studio.
The license file is automatically updated in the root directory of the studio.