Custom Buttons

[JYone3A]

Is it possible to add custom button? For example I want to add a 'save' button, but would prefer to have it in the toolbar.

Maybe in the configuration for the editor, it could be possible to set something like this:

{
    // ...
    customButtons: {
        save: 'https://example.org/...', // path to button SVG
        saveAs: 'https://example.org/...',
    },
    // ...
    buttons: [ 'select', 'free', 'save', 'saveAs', 'trash' ]
}

Clicking the button should then just send out a new CustomEvent('custom-button', { detail: 'saveAs' }) or whatever the custom button name was.