Accessing `blockRenderMap` prop

[FSaldanha]

Although the README says "All the props you can pass to Draft.js Editor can be passed to RichTextEditor", I could not access blockRenderMap. It is not defined in the props list. Passing it anyway gave no results.

I'm trying to get the rich text editor to accept new block types as explained in Draft.js docs.

Could you help me to understand what I am supposed to do to achieve this?