Not sure if there's an easier way, but....
Double-Click on your footage already in the Sequence (this should open up the selected footage in the Source Monitor) and drag the audio icon to bring your cameras audio back into the Sequence project. You might want to create new audio tracks to keep everything from shifting.
I work on Folly allot and I can tell you strait, there's no option like that in Premier Pro. If there's anything that they could have taken from Final Cut its that.
The way you will have to work with audio is a bit different. You bring the waveform to the Source Monitor by double clicking. In the Monitor, mark any beats, measures, or points of interest by pressing M to add a marker. After that, mark the In and Out points by pressing I and O to grab the desired part. Then drag the audio icon between the timeline and visual in the source monitor to grab the section and place it in an Audio track. If you expand the track, you can see the markers you placed. From there, you can cut or drag it like a video clip.
Rinse and Repeat.
How lame. Like I said beforenThis is a overview documentary with tons and tons of cuts. This sounds like it will be a huge undertaking. I will never build out a project without the camera audio again. For future edits I will just mute the track! Gawwwwwww.
We've all learned these little lessons the hard way.
When this happens to me, I match frame the clip in the Timeline (Sequence > Match Frame) on the first frame of the clip. The exact clip appears in the Source Monitor. Lock the video track. Overwrite the audio back in. Repeat for all your clips. It shouldn't take long.