FontLoader: Load Entire Family Font Files

[Sypter]

How can i load 4 font files with the same font type name?
I have trebuchet.ttf, trebucheti.ttf, trebuchetb.ttf and trebuchetbi.ttf and all of them have "Trebuchet MS" as their font type name.
When i use FontLoader i initially test if the font has been loaded before so it doesn't end up failing:

@
FontLoader{
id: trebuchet
}

Component.onCompleted:{
var families = Qt.fontFamilies().toString();
if (families.match(/Trebuchet MS/i)) {
trebuchet.name = "Trebuchet MS";
} else {
trebuchet.source = "fonts/trebuchet.ttf";
}
}
@

The problem is that they all use "Trebuchet MS" as their font type name, and that will end up making all fontloaders pointing to the default Trebuchet MS.