Glyphs mini font family

I’ve read Glyphs Mini doesn’t have ‘Multiple Master’ font capabilities. But does it at least have the ability to create and group the four basic versions or regular, bold, italic, bold-italic into one font family group? The fontinfo screenshot shows boxes for bold/italic. But does that mean when I create those 4 versions in my application they will be nicely grouped into one font family like fonts normally do? Or will I get four separate mentions of my custom font?

Yes. style linking is supported. You just need to use the same family name in all four files.