Following thread may helpful for you.
CAD Automation Engineer
NX 9 | NX 11 | Teamcenter 10
I suggest you download & review the "NXcustom" setup (see note pinned to the top of this forum for links to the thread for your version)
While perhaps overkill for just customer defaults, you'll probably want to share other stuff as well (eventually)
Ultimately you'll want to put the DPV file on a shared network drive (in an appropriate folder tree) & point UGII_SITE_DIR or UGII_GROUP_DIR to a parent folder.
Production: NX10.0.3.5 MP5 + patch/TC11.2
I'd rather be e-steemed than e-diseaseled