# VS_SOURCE_SETTINGS_<tool>

Added in version 3.18.

Set any item metadata on all non-built files that use <tool>.

Takes a list of `Key=Value` pairs. Tells the Visual Studio Generators to set `Key` to `Value` as item metadata on all non-built files that use `<tool>`.

For example:

    set_property(TARGET main PROPERTY VS_SOURCE_SETTINGS_FXCompile "Key=Value" "Key2=Value2")

will set `Key` to `Value` and `Key2` to `Value2` for all non-built files that use `FXCompile`.

`Generator expressions` are supported.