Capturing Two Cameras, Free Run Timecode! Help?

Hello, I just shot a live concert with two DVXs, free run timecode started at the same time so that the footage will roughly line up, and with a little bit of adjustment, they ought to line up perfectly in Final Cut Pro.. That is except for the fact that:

One camera recorder non-stop, except for tape changes, and the stop record was never engaged. The other camera was started and stopped for close-ups throughout the night.. Yes, the timecode will match up because they were on FreeRun, but the fact that the other one didn't roll the whole time poses a problem I believe.

Quesiton: Does final cut pro have an option to fill in the "holes" with black video so that if I do a multi-cam edit they line up throughout the entire timecoded sequence. This will prevent me from having to constantly slide the camera two clips down the sequence and realign timecode for every cut.

Not sure if I properly articulated myself, any help would be greatly appreciate!

Thanks in Advance!