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D8 Entity Browser - Add Button to Toolbar - Navigate to Text Format

1. Navigate to Text Format and Editors

Go to Admin Menu > Configuration > Content Authoring > Text Formats and Editors.

D8 Entity Browser - Add Button to Toolbar - Configure Text Format

2. Configure Text Format

Locate the text format you wish to apply the button to, in our example it's the Rich Text format.

Click the respective Configure button.

D8 Entity Browser - Add Button to Toolbar - Click Show Group Names

3. Show Group Names

Once inside the configuration screen, you'll see the toolbar.

Click the Show Group Names link. This will allow you to create a toolbar group that you can put your new media button in.

D8 Entity Browser - Add Button to Toolbar - Click Add Group

4. Add a Button Group

In the expanded toolbar, click the Add Group button.

D8 Entity Browser - Add Button to Toolbar - Name Button Group

5. Name the Button Group

A dialog box will appear.

Give the Button Group a name. In our example, we call it Media.

Click the Apply button.

D8 Entity Browser - Add Button to Toolbar - Drag WYSIWYG Button to Toolbar

6. Add Media Button

A blank space will appear on the toolbar with the button group name above it.

Grab your Media button and drag it into the blank space.

Click the Save Configuration button.

D8 Entity Browser - Add Button to Toolbar - Check for Button Presence

7. Test the Toolbar Out

Now it's time to test the toolbar out.

Add a content type that uses the text editor you've configured by going to Admin Menu > Content > Add Content > Your Content Type.

Locate your media button and click it.

D8 Entity Browser - Add Button to Toolbar - Library Tab

8. Library Tab Example

The Library tab makes use of media that has already been uploaded into your Media Library.

D8 Entity Browser - Add Button to Toolbar - Image Upload Tab

9. Upload Image(s) Tab Example

The Upload Image(s) tab provides a DropzoneJS field that you can drag and drop single or multiple image files into.

D8 Entity Browser - Add Button to Toolbar - Document Upload Tab

10. Upload Document(s) Tab Example

The Upload Document(s) tab provides a DropzoneJS field that you can drag and drop single or multiple document files into.

D8 Entity Browser - Add Button to Toolbar - Video Embed Tab

11. Add Video Embed Tab Example

The Add Video Embed tab provides video embed field that you can paste third-party YouTube links into.