Hello ialden,
the functionality to format numbers, date, time, as well to parse numbers don't depend on any particular local settings. Embedded Wizard, in its actual version provides only common functionality to support these operation out of the box. As you deduced, language specific formatting aspects need to be handled individually e.g. by implementing your own parse_float() method.
It does not necesarily mean that you have to implement all the affected functions from scratch. You could, for example, limit your implementation to replace the comma sign by a period and then pass the string to the original parse_float() function:
var string s = "123,456";
// Search in the original string for the , comma sign
var int32 i = s.find( ',', 0 );
// If found, replace it by period sign
if ( i >= 0 )
s[i] = '.';
// Parse the string as usual
var float f = s.parse_float( 0.0 );
trace f;
Best regards
Paul Banach