In Plot Details dialog, plot properties level, go to display tab, there is Plot Data on.

For grouped XYY 3D bars/ XYZ 3D bars plot, when stack is enable, each subgroup should have one plot data on option.

But, when Stack = cumulative or incremental, we can show plot data on option for all plots in group when following conditions are all met.

1. Offset within subgroup is selected

2. enable subgroup = by axis