WPF: Grouping font files into one font family - wpf

Question

I am trying to use S-Core Dream font in WPF, but each file has different font family to each other -- including weight in it, e.g. S-Core Dream 1 for Thin -- so they are not grouped into a single FontFamily.
If these are used in WPF, FontWeight is just ignored and the actual font weight depends on which "font family" was selected from the nine available FontFamilys. (A regex ^S-Core Dream [1-9]$ matches the all of them.)
Can I group them into a single FontFamily, like S-Core Dream for instance, and manipulate font weights with just FontWeight property?
<TextBlock
FontFamily="S-Core Dream"
FontWeight="Regular"
>
I want here to be <Run FontWeight="Bold">Bold</Run>,
and here to be <Run FontWeight="Thin">Thin</Run>
while the others remain Regular.
</TextBlock>
What I have tried are below:
<TextBlock
FontFamily="/Resources/#S-Core Dream 4"
FontWeight="Black"
>
This TextBlock is shown in Regular (400) font weight, not Black (900).
</TextBlock>
<TextBlock
FontFamily="/Resources/#S-Core Dream 1, /Resources/#S-Core Dream 2"
FontWeight="Black"
>
This TextBlock is shown in fallback font.
</TextBlock>
Modifying the font file itself violates the license of the font, so I would avoid to do so.
This is an HTML/CSS equivalent of what I want to achieve:
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-1Thin.woff') format('woff');
font-weight: 100;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-2ExtraLight.woff') format('woff');
font-weight: 200;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-3Light.woff') format('woff');
font-weight: 300;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-4Regular.woff') format('woff');
font-weight: 400;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-5Medium.woff') format('woff');
font-weight: 500;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-6Bold.woff') format('woff');
font-weight: 600;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-7ExtraBold.woff') format('woff');
font-weight: 700;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-8Heavy.woff') format('woff');
font-weight: 800;
}
#font-face {
font-family: S-Core Dream;
src: url('https://cdn.jsdelivr.net/gh/projectnoonnu/noonfonts_six#1.2/S-CoreDream-9Black.woff') format('woff');
font-weight: 900;
}
<div style="font-family: 'S-Core Dream'; font-weight: 400;">
I want here to be <span style="font-weight: 700;">Bold</span>,
and here to be <span style="font-weight: 100;">Thin</span>
while the others remain Regular.
</TextBlock>
<hr />
<div style="font-family: 'S-Core Dream';">
<span style="font-weight: 100;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 200;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 300;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 400;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 500;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 600;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 700;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 800;">The quick brown fox jumps over the lazy dog.</span><br />
<span style="font-weight: 900;">The quick brown fox jumps over the lazy dog.</span><br />
</div>