Remove dots from D.S. and save as default

I prefer to show my Dal Segno as "DS" rather than "D.S.". The latter is an antiquated standard IMO -- like the dots in "U.S.A." as opposed to the simple "USA." We're all familiar with acronyms these days and "DS" just looks more modern to me.

So, yes, I know I can edit the D.S. when I enter it, but I want "DS" to be the default. How can I make it so? Is it possible?