Change Pictograms Using NWBC

Dear Experts

I am using NWBC and need know:

With this application WDA, i found the new pictograms and icons available in the system

https://< server>:<port>/sap/bc/webdynpro/sap/wdr_test_web_icons?sap-language=EN&sap-theme=sap_corbu

- How can upload new customer pictograms and where can change it ?

- Add a description to each one of the services for example "Direcciones.

With the version WDJava we can add a description to the service. With this version How can get it?

Thanks

Regards