Endpoint Manager

Is there a way to just have one device under device and the lines under device. For example I have Grandstreams 2140 with 4 lines, I have to create a new device/user for each line on that phone. So that 1 phone times 8 phones is 32 devices/users I have to create. Is there a way to just create 1 device, and then the 4 lines per device? Kind of how Cisco Call Manager is if anyone has used that.