multiple master help

Hi all, type enthusiast here.

Im interested in some time savers for generating more weights in FontLab.

Im using old mac (10.5. dont ask -.- ) so cant install robofab, Superpolator, etc.

Is it possible to interpolate with multiple master tool in fontlab, and if it is possible can someone please write step by step tutorial, or point me to a good/easy to understand tutorial on a subject.

Thanks alot