Can I change default thousands separator in Pentaho 5.2 ? (from USA format to eurpean

Hi all,
How can I change the separator of thousands from "," to "." in pentaho 5.2 (from USA format to eurpean format)?
in 4.8 can change the function toFormatedString in pentaho-solutions/system/pentaho-cdf/js/Dashboards.js, but in 5.2 this function does not exist.

Thanks in advance
Ettore