To add multiple cameras in a particular subnet in bulk to Wave 4.XX or higher. Please perform the following:
Right click on the name of the server. Then click on add device.
There are two tabs. Known Address and Subnet Scan. Click Subnet Scan.
Provide a starting IP and an ending IP.
This will find any unit in that range. If you provide the proper credentials in the fields to the right. When you check the box for the units. It will add them to Wave and connect successfully.