Editor: Columns

What's the problem?

I want to be able to create different layouts for my documents, rather than having everything stacked vertically. For example, I can't create a Pros and Cons list and see them side by side.

What's the solution?

The editor should support the ability to have columns.

• Should at least support 2 columns, but ideally up to 4.
• Many other block editors have this functionality where you can drag and drop blocks to create the column.
• Block menu maybe should also have columns in here.

Why do I need this?

Because I'm often building documents that are for projects or dashboards, and it's very handy to be able to have multiple layout options.