NX11 customization of Material Library

Hello Folks,

I'm desperate... I try to set up a new Material Library for my NX11. I know that I have to set some variables like

UGII_PHYS_MATERIAL_LIB_DIR=
UGII_PHYS_MATERIAL_LIB_DATA_DIR=
UGII_PHYS_MATERIAL_LIB_PATH=

As well the customer defaults. But I can do what I want, I create a local material for example. after reboot it is gone, delete, now where to find. 

Even in the past I could access the library's with the Material Library Manager and select a type Export Material to Library... in NX11 I can't find this type anymore.

Even the NX Help did not bring me on, I tried this in nx9 worked, in nx11 not

https://support.industrysoftware.automation.siemens.com/docs/nx/nx9/ugdoc/html_files/nx_help/index.html#uid:index_advanced:xid389656:id627076

maybe some have a tutorial how to start up in nx11 ...

Cheers