Blueprint columns in blocks

It would be awesome if block fields could be structured using columns.

This would be sooooo helpful!

something like this:

name: Untertitel | Text
icon: book
preview: fields
wysiwyg: true

fields:
columns:
    - width: 1/3
    fields:
        title:
        label: Titel
        type: textarea
        buttons: false
        subTitle:
        label: Untertitel
        type: textarea
        buttons: false
    - width: 2/3
    fields:
        text:
        label: Text
        type: writer

or even in combination with tabs!
this would make a small but powerful addition.