Opening Metro To open Metro: Double-click the Metro application icon located in the Metro folder on your hard drive. If you are running Metro for the first time, you must have the product CD in your CD-ROM drive. Click OK. Once Metro is open, the next step is to indicate your MIDI setup and recording preferences. For OS 9 we recommend that you install OMS before setting up MIDI. See Also: MIDI Setup (OS X) MIDI Setup Without OMS OMS MIDI Setup