No, but I read somewhere that if you create a shortcut in Explorer they are displayed and working correctly in the Share Gui. I think this may be on the roadmap.
For some time I've created shortcuts in Explorer and used them in Share, as suggested. It's a bit clumsy but it works.
Now I'm upgrading from Alfresco 4f to 5c community edition. Since the Explorer interface is gone in Alfresco 5, this workaround no longer works. Are shortcuts/links supported in Share Alfresco 5? I couldn't find anything.