I am using FooGallery https://wordpress.org/plugins/foogallery/ on this in-development site. It works great but there is one limitation in its built-in settings, that I think I could be able to accomplish by creating a View for the custom post type "foogallery" created by the plugin. However, when I go to the Toolset Dashboard I see "Downloads", "Events" and "Locations" that are created by other third-party plugins I'm using, but I do not see "Galleries". And likewise, "Galleries" is not an option within Views. Is there something I can do within Toolset to make this post type available, or is this a question better asked of FooGallery support?
Some plugins, such as WooCommerce, have an API filter which lets you intercede when a post type is registered and change the options beforehand.
You could ask the plugin authors about the same.
If not the only solution would be to comment out the code which registers the CPT within the plugin and then use Types to register a post type with the same slug, but which is public. Obviously, I can't recommend that because your changes would be lost with any plugin updates, and it could have unexpected side effects.