air density missing in OpenRocket plotting?

[Buckeye]

I am using OR 15.03 to see how the atmosphere model is implemented. I don't see air density as an output variable for plotting or export. That seems strange, as every other variable under the sun is offered (53 of them, in fact). I see temperature, pressure, gravity, and stuff that needs density, like Re and drag force, but not density itself.

Oh well, I guess I can just use Ideal Gas Law or back it out from another values.