Canister gas exchange

[Sundance]

One particular thing i'd like to see go from Destiny to Cogmap 2 is the Canister Tanks in atmos. Just the oxygen/air one, so it's easier to make a place habitable.
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Perhaps this is what OP's could be getting at?

I should probably not make this post before checking what the other tanks around cogmap2 contain, but still, having these two tanks located somewhere in engineering would be particularly handy.