Doesn’t work for custom hierarchical posts

This menu plugin is great but it doesn’t seem to support hierarchical custom post types.
It works with CPT categories but not the hierarchical items of a post.
For example, I have a “Products” CPT that contains the following hierarchical structure:

Post 1 (Parent)
Post 2 (Child)
Post 3 (Child)
Post 4 (Parent)
Post 5 (Child)
Post 6 (Child)

As you see in this example, post 1 and post 4 are not categories. There should be an option to choose between category structure or post structure. Is there a setting for that?

Please advise
Thanks