The floating license may be shared between any number of users in multiple offices. The number of users active at any given time is controlled by the license file. Select Help -> Floating License and complete the dialog with information provided by EI LLC technical support.
If you have purchased EnviroInsite with a floating license then you'll be given a path and login information for the location of your license file. This allows you to start and run EnviroInsite from any computer. Sometimes you may encounter the dreaded error message "cannot find floating license". Double-check the information that you've entered for the floating license first. It everything was entered correctly then it may be that the computer or corporate firewall is blocking access to the license file. EnviroInsite needs to have access with read/write privileges to Port 21 to make contact with the license file at the static IP address 18.104.22.168.