How to inherit snippets?

Hi, I have some language shop, for which I don’t have default snippets in that language, so by default it takes the german values, does anybody know how to select the language you want in localization and use snippets written by yourself, but in same time use the english snippets for empty snippets.

default value: optional but highly recommended. This is the fallback value used for your snippet, in case a value is not present in the database or .ini files. It’s recommended that you set a snippet’s default value to the snippets „real“ English value.