I am Mechanical engineer with majors in finite element analysis and I have done various projects on ANSYS 14. I am well aware of the ANSYS Customization Toolkit. To access the currently available extensions, you must have a login to the ANSYS Customer Portal and be current on maintenance (TECS). Within the customer portal, the Extensions are available by clicking on Downloads > Extension Library; then click on ACT Library.
Rather than doing that, I can help you with ACT extensions for piezoelectric materials.
Looking forward to your response.