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Not as far as I know. Why?

Maybe I misunderstood what you meant, what you were trying to do, but you had mentioned painting weights, and I thought of rigging in Lightwave.
In LW you can't really "paint" weight maps, though you can assign weight maps to groups of polygons and set the falloff for them, and then assign bones to them although that will significantly increase the file size, as they are more vertex maps added to the mix, and can also slow down bone performance at the same time.

So the other method to avoid that is to use "hold bones" in areas to prevent other nearby bones from deforming areas you don't want deformed. The hold bones, however can also be used to deform the mesh if you want to.

Although in Poser, the equivalent to weight maps would be assigning certain parts to a bone, which I believe simply has to be done, period. In LW, the bones will automatically influence a region around them, with or without weight maps, so "hold bones" can be used in problem areas.

So I was just wondering if there was a way to do that in Poser, as it might help to solidify body parts from being deformed, as an addition to the falloff settings for the nearby bones.