Problem with associations and attributes

Dear all,

I attach an example where I have a class A and a class B. The class A has an attribute that is a reference to the class B with the corresponding association. When I delete the attribute or the association both are deleted. This was done with a previous version of Visual paradigm. I created the attribute and then I could select “Show association” and the association appeared.

Now with the new version 10.2 I can’t find how to create this same example. Could some one help me? This is really useful to avoid that you delete the attribute but you forgot to delete the association.