It would make finding a specific machine much easier if we could search by the actual machine name at the Customer level instead of just agent name or last logged user.

I made a workaround by creating a Machine Name custom field for each agent and having a Powershell script query the machine name and set the custom field value when the agent is installed. Then I use a custom view on the devices page where I can enter the machine name and find the agent where the Machine Name custom field contains the device name I want to find.

It works, but involves far too many steps for something that really should just be built into the search already.