Your shape morph will be placed within the 'Head' region of the parameter tab and will default to the group path shown. You can change this to anything you like as long as you remember that forward slash '/' creates a sub-group and your group path should not end with a slash.
Don't use any characters that aren't allowed in a filename.
Daz Studio can read your new morph from any of your content directories.
If for some reason you want to use a different directory, first add it as a content directory in Daz Studio (Edit -> Preferences -> Content -> Content Directory Manager -> Daz Studio Formats -> Add), then re-start FaceGen Artist and it will appear on the list.
The eye shape after applying the FaceGen shape morph will not always be spherical and can result in unwanted surface intersections when the eyes are rotated. This happens because FaceGen works by warping space. We will fix this issue in a future version. Currently you must manually touch up the result when this occurs.
To reset all settings to their defaults, close Artist then delete the directory:
C:\Users\USERNAME\AppData\Local\FaceGen\Artist VERSION\
Where 'USERNAME' is your login name and 'VERSION' is either 'Demo', 'Home' or 'Pro'.