Upgrade from NX 7.5 TC8.3 integration to NX10 TC11.2.1

Hi Experts,

a costumer that managed large assemblies has been migrated from Nx7.5 with Tc 8.3 to Nx10 with TC11.2.1.

They notice that an Assembly Option in NX7.5 called Variant Configuration (when You open a part and want to know the Variants about this part)is not available in NX10 TC11.2.1integration .

Do You know about how to get same funcionality with new integration(NX10 TC11.2.1

Have You information about it?

Have You an example to show how to proceed?

Any suggestion will be appreciate....thanks in advanced!!

regards