How to add a Custom Strip with a Custom Chunk and Button in Sitecore 8.1

As per subject - I want to create a custom button in a new Strip; the instructions that used to work for Sitecore 7.5 (adding a Strip Item under /sitecore/content/Applications/Content Editor/Ribbons/Strips, etc.) don't seem to work anymore in 8.1.

Can anyone link detailed documentation to do so?

First, right-click on the toolbar and see if you have the new menu listed as shown in the screenshot below. If not please see the following steps:

1. Navigate to /sitecore/content/Applications/Content Editor/Ribbons/Chunksand create a new Chunk. The template is at /sitecore/templates/System/Ribbon/Chunk

2. Create your button in the newly created Chunk which is based on the template /sitecore/templates/System/Ribbon/Large Button

3. Navigate to /sitecore/content/Applications/Content Editor/Ribbons/Strips and create your new Strip from the template /sitecore/templates/System/Ribbon/Strip

4. Then, add a reference for your Chunk using the template /sitecore/templates/System/Reference and in the droptree, select your created Chunk

5. Navigate to /sitecore/content/Applications/Content Editor/Ribbons/Ribbons/Default and create a reference using the template /sitecore/templates/System/Reference and select your strip from the droptree.

6. Refresh the page and see if it is present. If not, right click on the toolbar and see if you have your new navigation list as shown below: