Hey Robert, I don't want to embarrass you, but that's been possible on Macs ever since OSX came out.  As other's have pointed out, Lloyd's Background Render script, and AME are even more elegant solutions at this point in time for Ae.

But, it may interest you to know that your core idea still  has value.  When I transcode DSLR footage to ProRes, I use a duplicated instance of MPEG Streamclip.  Both instances are set to  use 4 processes, and when I do batch transcodes, this will max out all 8 cores of my MacPro, making the overall process go much faster.

And hey, keep the tips coming.  I've picked up so many great ones from this list.  Actually, I got your tip about five years ago on this very list, and used to employ it regularly, until Nucleo Pro, and then the Background Render script replaced it.

On Feb 4, 2012, at 10:17 PM, Red Truck wrote:

> Just wanted share this nifty After Effects/Mac trick I picked up this week.
>
> Want to keep working in AE while waiting for a render to complete?
> I was watching another editor versioning titles for a promo with AE on a MacPro. He set one version of titles to render then launched a SECOND application of AE on the same machine and proceeded to work on the next set of titles while the first set was rendering.  He continued to bounce between the two AE applications as each set of renders completed.
>
> The trick?  He had simply DUPLICATED the AE program in the Applications folder. With two separate short cuts in the dock linked to each copy of AE, he was able to run two versions of the same AE at the same time. The only complaint the Mac had with the second launch was that “the Application had moved”. Ignore this warning and you're good to go. Who knew? Maybe you did but it was a wow moment for me.
>
> Robert Alsop@
> Red Truck
> Toronto CA
> Video To Go!
>
>

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