Default Component Properties

@artf FYI that doesn't exactly work as needed. Updating the default component's default properties does not take effect for already-defined components (such as built in table, textnode, et. al.) because they have already extended the default model. Updating the default component would only change the default behavior for any new models that further extend the new default model definition.

In order to update all components, including existing and built ins, to have the desired default properties, I had to iterate over them all and update them one by one. This resulted in the desired (for me) behavior of establishing across-the-board default properties.

// Update all component model default properties
const allComps = editor.DomComponents.componentTypes.slice();
for (let i = 0; i < allComps.length; i++) {
    editor.DomComponents.addType(allComps[i].id, {
        model: {
            defaults: {
                copyable: false,
                resizable: false,
                draggable: false,
            }
        },
    });
}

You can update the default component https://grapesjs.com/docs/modules/Components.html#update-component-type

@jereddanielson correct, this is how you should do to update also already defined component types. Thanks for pointing this out