How do I insert multiple computers to "All Devices"

Hi All,

I've a strange query.

There are multiple machines under different VLAN and IP Ranges. But, I've all the hostnames in a text file. I've added one machine under All devices (Right Click "All Devices -> insert new computer") .  Then created a scheduled task to push the agent and 'drag and drop' the machine to the scheduled task. Fine. The agent got installed and i'm able to get the inventory.

I'm wondering, is there any option to add all the hostnames in the text file to "All Devices"?

-Sukumar