I don’t know what you mean by “master font” but it probably means either of these:
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Set up a proper link between fonts (make a matrix of Regular, Italic, Bold, Bold Italic) so that the Italic and Bold button in MS Office functions. It’s called style linking and yes you can do it in Mini (you will have to save each glyphs file separately). Download the manual of the full version and read the relevant section.
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Draw compatible outlines (e.g. Light and Bold) and automatically interpolate other weights. This is called multiple master, and you can only do it in full version.