Explicit bidirectional aggregation and composition

+1 vote
asked Jun 29, 2017 in Wanted features by gregfreeb (120 points)
edited Jun 29, 2017 by gregfreeb
I need to use explicit bidirectional aggregation and composition ( https://pasteboard.co/2Ui6pbkek.png and https://pasteboard.co/2UkkGNFeo.png ).

However I had no luck to find it in the documentation. I tried to use A *<--> B and C <*--> D but they do not work.

I also miss the unidirectional to aggregation/composition ( https://pasteboard.co/2VunFvLqw.png and https://pasteboard.co/2Vv27pBVz.png )

Is this feature supported?

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