Tabs in rich text editor

I have been researching on how to make tab in rich text editor for almost a week to no avail, give me links but I might’ve read it already. I saw somewhere that I could use macro but I got error instead.

Can someone suggest to me what is the best methods to do this? Is it possible


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/105343-tabs-in-rich-text-editor