ALEX ARCIGA

This plugin adds a “Duplicate Attribute” page under Products in the WordPress admin, allowing you to:
<ul>
<li>Duplicate WooCommerce global product attributes</li>
<li>Copy all attribute settings (name, slug, type, order by, visibility)</li>
<li>Copy all attribute terms in the same order</li>
<li>Copy all term meta (e.g. color preview codes, custom fields)</li>
<li>Preserve parent/child hierarchy for terms</li>
</ul>
Perfect if you need to quickly replicate existing attribute taxonomies for new products or stores.
<h3>License</h3>
This plugin is licensed under the GPL v2 or later. 
You are free to use, modify, and distribute it.

Duplicate Attribute

Duplicate WooCommerce global product attributes including all terms, term order, and term meta (like color previews).

ska-dev

websevendev

jimedwards

This plugin adds additional advanced inspector controls to Gutenberg blocks that allow to add any custom HTML attributes to the block’s front-end output. This allows you to add inline styles to fine-tune the block’s appearance, set aria attributes to improve your site’s accessibility, add data attributes to integrate with any JavaScript modules or even JavaScript DOM event attributes such as <code>onclick</code>, <code>onchange</code> or <code>onload</code>.
<a href="https://playground.wordpress.net/?plugin=attributes-for-blocks&url=%2Fwp-admin%2Fpost.php%3Fpost%3D2%26action%3Dedit" rel="nofollow ugc">Demo</a>

Attributes for Blocks

It's perfect for what I need! I hope you'll keep it updated as this behaviour should really be native in WordPress!

This should be native!

This is just Gold

Allows to add HTML attributes to Gutenberg blocks.

Duplicate Attribute vs Attributes for Blocks