Solution
It is possible to make a network license as a managed concurrent license and Getting Started With NI Volume License Manager (VLM).
For example, if you make a network license with Computer base Managed Concurrent, you can check out the license from the license server via the network only when using the software, and you can realize the behavior that the number of empty seats is automatically returned when the software is finished using. To achieve this behavior, client PCs that may use the license must be registered with NI VLM, a computer group must be created, and the client PC and license must be explicitly added to the computer group.