This could be a life saver!!!

This plugin can be invaluable if they mess things up and do not implement Gutenberg correctly. The official reply I got from the developers is that they “MIGHT” add the feature to have the custom MCE buttons in Gutenberg. If they don’t, and they probably won’t knowing them…, thousands of themes and thousands of plugins that depend on these custom buttons will become almost useless.

So thank you for this!!!