Hi Jim,
Thats true that having to regen individually each level of an assembly, composed itself of multiple sub-assembly levels, is quite tedious.
One thing I can propose, I don’t know what you will think about it, once you modified a value/formula in the equation manager, go straight to your final assembly, expand everything, right click each level and regen, starting from lower levels to higher ones.
But yeah, once you reach tens or hundreds of sub-assemblies in a final one, that turn into a new sport discipline (unless I am missing a magical feature).
Regards.