collect index="based on values"

Hi everybody, is it possible to create several summary index within one search? Example: "**Index A**" has a **field** "**OS**" with **values** "**Windows**", "**Linux**"... Is there a way to tell splunk to loop something like: `index=A | collect index="OS"` (where OS is the field-value) So that each result based on field OS will be stored in (allready created) index "Windows", "Linux", .... Many thanks in advance.