Adam Harley (Kawauso)

A quick adaptation of the theme restriction code for widgets. Can only restrict on a site-wide basis, though it will only affect those sites on which it’s activated. Does not restrict super admins. Plugins must be active on the main site to be controlled by this plugin (this is an issue with WordPress’ plugin structure).
See also: <a href="https://wordpress.org/extend/plugins/restrict-multisite-plugins/" rel="ugc">Restrict Multisite Plugins</a>

Restrict Multisite Widgets

Allows network admins to restrict which widgets are available on sites, similar to themes.

Nabil Lemsieh

The “Conditional Add to Cart” plugin allows you to control the visibility and behavior, as well as customize the appearance and content of the “Add to cart” button in WooCommerce based on a set of conditions. This gives you greater control and flexibility over how the button behaves and appears in your WooCommerce store.
You can trigger actions such as disabling or enabling the button, or changing its text and appearance. You can even replace the button entirely with your own custom HTML or shortcode.
NOTE: More conditions and actions will be added in future updates, so if you have any feedback or feature requests, please feel free to share them on <a href="https://wordpress.org/support/plugin/conditional-add-to-cart" rel="ugc">our forum</a>

Conditional Add To Cart for WooCommerce

Conditionally control the visibility and behavior, as well as customize the appearance and content of your "Add to cart" button in WooCommerce.

Restrict Multisite Widgets vs Conditional Add To Cart for WooCommerce