Defining new Decimal Character format?

Hello everyone,

I am looking to add a new Decimal Character format to SAP system.

A little explanation:

in country-specific formatting (transaction OY01, double click on country and the last option 'Dec.pt.format') there are 3 different ways to format a number:

1.234.567,89

1,234,567.89

1 234 567,89

I'm looking to have a format like 1 234 567.89

How can I add my own format to the database?

Thank you all!

Märten