In Final Cut Pro X 10.1.1 I'm trying to separate left and right stereo tracks to delete left and pan right to centre. I cannot find a way to do this.

Question

I record in stereo with a 10KHz tone down the left channel to defeat AGC on my camera and mic feed into the right channel. When I edit, I want to mute/delete the left channel and pan the right into the centre, to leave me with mono audio across both left and right. I could do this easily in FCP 6 but can find no way to do it in FCP X. I'm using the same source files. When I choose Dual Mono mode in the Audio Inspector, it mixes left and right and pushes the combined signal into both channels, giving me a mix of 10KHZ tone and audio in both left and right. Stereo mode shows me the two channels correctly with one driven hard (the tone) and the other at good voice levels. I just want to kill the left channel and pan the right to centre.
I'm converting original TOD files using MPEG Streamclip before import and definitely keeping audio as stereo.
This is driving me nuts! It should be simple and is in FCP 6. Any help greatly appreciated.
Stereo Setting
Mono Setting

Answer 1

Mb - If you're using FCPX 10.1.1 and Mavericks, make certain you've downloaded the most current Sony XDCAM FCPX plugin from sonycreativesortware.com unless you're using an older version of FCPX and then you'd need the previous XDCAM plugin.
You shouldn't see 8 mono tracks.  There are import settings in /fCPX that you can check and I don't ask FCPX to analyze my media or seperate mono or combine stereo, etc.  I like to have everything come in as it is, especially because I know what I've done with every channel, etc.
What I wrote to Ian is what I'd tell you - so please take a look at how you can make a "stereo" track that is actually two mono tracks, mono.  Once you do that you can address each mono channel by itself since it needs different volume, compression, and EQ than other channels.
There are ethernet, USB, and firewire controllers that work in FCPX, but that's not the typical workflow because generally if you're getting into any amount of post audio sweetening beyond basic "staples" audio treatment, you would instead use "Roles" to export your audio to Logic or Pro Tools and do you work in those applications and then cut the final product back into your FCPX project.  In Logic or Pro Tools is where you might use a controller.
In terms of automating levels, I'm not positive I know what you mean.  Compressor is a nice internal Logic plugin that kind of automates levels in a way but its about compressing peaks at a threshold that you set and at a ratio of compression.  So I may not understand what other automation is available unless you've exported you tracks to Logic or Pro Tools.