Hi Claudio,
I assume that this is a single seat license that you have purchased. If so, you can only use the license as either computer based, or user based (see the explanations below). Either way, the license can only be used by one user at the same time.
Named-User License: With this option, the software can be installed on up to three computers and can be running on only one computer at a time. This type of license includes a home exception, which allows for the installation and activation of the software on one home machine.
Computer-Based License: License for an individual computer with no restrictions on the number of users. Also known as “host-based,” “seat-based,” or “node-locked.” This type of license includes a home exception, which allows for the installation and activation of the software on one home machine for one user.
For further information please do take a look at the NI Software License Agreement.
Kind regards,
Alice Boughton MEng (Hons)
Technical Support Engineer