Getting Center Of Mass Vector in SPH/VAB

[notcomplex]

I know the vessel has a convenient function but it only works for the flight stage.

I was thinking I could loop through the parts get their masses and attachment node positions and calculate it that way (but damn a bit annoying). Was wondering if there's a simpler way to get this info, and if this is even feasible.

[codepoet]

Did you ever figure out an answer to this question? I am interested in finding ways of automatically redistributeing fuel between tanks in order to move the CoM as close as possible to where it theoretically is when all the tanks are full, and the calculation you mention will be essential to doing this.