can supply a register by 'group' way example

[seenyea]

Is your feature request related to a problem? Please describe.
supply a register by 'group' way example

[Kirill Zyusko]

@seenyea I think I already wrote about it, isn't?

[seenyea]

I think a working example, not a doc example

[Kirill Zyusko]

@seenyea ah, yes. It's on my roadmap in v2. I'm writing snacks, so you can try it straight in browser :)

[Kirill Zyusko]

Closed due to #23