You're looking for a feature related to "Registration Key Modbus Poll".
Single-User Flexibility: A single-user license allows you to install and use the key on multiple computers, provided only you are using it. Registration Key Modbus Poll
Applications of Registration Key Modbus Poll You're looking for a feature related to "Registration
A dialog box will appear prompting you to enter the License Key. Copy and paste your key into the field and confirm. Registration Key Modbus Poll
What is a Registration Key?