Currency separator

Hi.
I’m playing with DT3 to see if I can use it for my administrative things.

I’ve created a custom field (invoice amount) and set it to decimal number with currency format but the separator is a comma and if I use my numeric pad, the separator is a dot.
Result: if I put for example 76.80, the field transform to 7680,00.

Is there a way to change currency separator in DT3 from comma to dot?

Thanks in advance for your help