Indeed, the Universal Poses are no more!  Your best alternative is Netherworks Studios PoseWriter, it does a very good job translating a pose from one figure to another.  It is bundled with P11 and you will find it under Scripts>Partners.  The only instances where it does not work are the DAZ Genesis figures and Antonia.  There might be others but I haven't had the opportunity to test drive other models in my Runtimes.  Unfortunately, PoseWriter was not ported over to P12 because of the Python change and I don't know if it will ever be updated.