This is a walkthru on adding morphs to the Genesis 2 figure in DAZ Studio 4.6

First, load Genesis and Genesis 2. It doesn't matter if they are on top of each other.
Then invoke Transfer Utility from active pane options tab.

Add the source and target figures to boxes. Only check boxes that are shown.
The Morph Targets box must be selected to reveal the options. When done, press Accept

We can delete the first Genesis figure. Check the parameters tab for Genesis 2 and you should see the newly added morphs.

We will now save our newly modified figure under a different name and folder. I changed the product name to Genesis 2X.
If you have the Genesis 2 genitalia (or plan on getting it) you can add it in compatability box.