This is the standard row-creation control for a loopback test table entry, letting an admin create and immediately start a test with createAndGo, or create a test entry and hold it pending with createAndWait until the duration setting is finalized. Administrators use createAndGo to launch an unlimited-duration loopback test right away, while createAndWait is used when they want to first set the test-duration object to a specific bounded time before the test actually begins. Setting this object to createAndGo would kick off an indefinite loopback test on that entry immediately.