As you may know by now, our major update (v20.1) ships with a new Multiline Toolbar option for the
DevExtreme HTML/Markdown Editor. When used, the HTML/Markdown Editor arranges its toolbar items across multiple lines based upon available space width. New lines can be added/removed automatically when a user resizes their web-browser's window or changes to a mobile device orientation.

Configuration
You can enable or disable our Editor’s Multiline Toolbar Mode via the new
toolbar.multiline option:
{
toolbar: {
multiline: true
}
}
Further Enhancements
We are currently considering improvements to toolbar item group configuration and associated behaviors. We may introduce a simplified configuration API and allow you to move grouped items together to a new line. We are looking forward for your thoughts on this. Please comment below at your convenience.

Feedback
Please visit our updated
Widgets Gallery and test-drive the new Multiline Toolbar Mode and let us know what you think. If you have any questions or suggestions, please take part in our HTML Editor discussion on GitHub:
HTMLEditor - Multiline Toolbar.
Free DevExpress Products – Get Your Copy Today
The following free DevExpress product offers remain available. Should you have any questions about the free offers below, please submit a ticket via the
DevExpress Support Center at your convenience. We’ll be happy to follow-up.