Can balls and sockets be used in EA class diagrams?

Ball and socket designation is legal UML 2.0, but I cannot find a way to get EA to draw it on the chart. He refuses to resolve the relationship between the socket and the ball. Is there a way to do this, as in the diagram below (small mask for masks):

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Also, a side question, can you make a ball or nest on the other side of the element?

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3 answers

There are two different ways to display a ball and socket in EA.

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