1P8 Windows 8.5 beta missing "password generator" (key icon next to ladybug and "+ New Item")

Hello @zzaaiinn ! Thanks for sharing your feedback! We appreciate every idea that could make 1Password better.
I have confirmed with our design team and currently we don't have any immediate plan to have stand alone password generator in our desktop app.
Having said that, I have added this to our future product roadmap requests so that design and product teams can decide how a feature like this can fit into the product.
Thanks again and have a wonderful day! :)