I'm assuming you have a way to make a two track digital master of what you have finished that sonically reflects all the fader, panning, automation moves, etc. you have completed using the audio sounds within the DM 3200, to where, as an example, you could send a two track master to a friend, and your friend would be able to hear the entire work including all the attributes that the Tascam board provides, just like you hear it when you play it back from the multitrack files themselves. I'm saying complete a digital two track master as high quality as is at your disposal of the completed main body of work that reflects all the sound alterations that the DM 3200 provides and save that two track master to your computer. Create a two track master of the intro as well, that reflects all the fader moves, panning, effects, etc. as suggested for you to do with the main body of work. After you have a two track master of both the intro and the main part of the song or project, create a new project in the DAW that you are using, drag the intro two track file into the DAW creating a stereo audio file in the DAW's new project, then drag the two track main body of your work into the track space below it, creating a second stereo audio file, then position it to start right where you want it to at the ending of the intro two track stereo file. This gives you the freedom to create the intro as long as you want, and still preserve the body of work you have completed without having to create a space at the beginning of your multitrack files of the main body of work you have completed. The only caveat of coarse would be that once both the intro and the main work is mixed down to two track master files, there isn't any independent multitrack tweaking you will be able to do, just volume adjustments of the independent two track master mixes. Sonically, though, unless you were creating a multitrack project to be used in conjunction with a live performance situation, I think doing it that way would achieve the same final result for those who would be listening to your work.