The size of the DAZ Importer was growing out control, and therefore I decided to split the addon some time ago. Some seldomly used tools were moved to separate addons, which depend on the DAZ Importer. However, this did not work out so well, especially after Blender extensions were introduced in Blender 4.2. The preset exporter, daz rigging tools, and shell editor are now back in the main addon, but they are now features that can be enabled and disabled in the addon preferences.
At the bottom of the dialog we can enable and disabled features.If the DAZ Exporter feature is disabled, there is no export panel in the DAZ Runtime tab.
If we enable the feature, the Export panel appears.
The tools for building advanced rigs (simple IK, MHX and Rigify) have also been made into features that can be disabled if you don't want them.
But if we enable all three features the buttons are back.