To create a weight-mapped figure in DAZ do the following:
Load up Posette (or any other figure) in a empty scene
On the scene tab go to the upper right corner and left click on the little arrow with the four lines
Look for Edit click on the arrow
Look for Rigging click on the arrow
Look for Convert Figure to Weight mapping.. It is like third from the bottom of the list. Click on the arrow
Select TriAx (Local) Weight Mapping
Select Accept.

At this point you need to decide if you are going to add SubD and/or Smoothing. The reason being that those two changes can have a significant impact on how Posette will respond when you inject any morphs. DAZ has problems knowing how to deal with the .pz2 files. This is because DAZ and Poser use two different methods of creating the JCMs and such. There also can be some distortion of the mesh due to using just the default weight maps as well but if you don't put her into extreme poses you might not see this.

To add sub-division
On the scene tab go to the upper right corner and left click on the little arrow with the four lines
Look for Edit click on the arrow
Look for Geometry click on the arrow
Look for Convert to SubD... and select it.
With Posette (or the figure you are working on figure)selected.
In the parameters tab, look for Mesh Resolution. I like to see what the figure will look like so on the View SubD Level I set it to 2.

To add smoothing
On the scene tab go to the upper right corner and left click on the little arrow with the four lines
Look for Edit click on the arrow
Look for Geometry click on the arrow
Look for Add Smoothing Modifier... and select it.
With Posette (or the figure you are working on figure)selected.
In the parameters tab, look for Mesh Smoothing... and select it.

To save out you new Posette (or other figure)
Go up to File
Select Save As..
Go to the bottom of the list
Select Support Asset
Select Figure/Prop Assets...
Name the new Posette file. I created a directory under People\P4NudeWoman\Character\
Hit save
Fill out the Options box. I make sure that under Asset Definitions I have all three of the Write boxes checked.
Click on Accept.