You can make bulk changes to the devices using the API.
telnet localhost 7661
LOGIN <login_id>/<password>
device.list "deviceName=*"
test.list "deviceName=xyz", "testName=*"
test.suspend "testName=VirtMemUsed", "deviceName=compaq*"
device.delete "deviceName=*"
LOGOUT
See the Traverse Developer Guide & API Reference for more information.