#875 Graphical link disappears when closing the Parentnode

[Uwe]

First, excuse my bad english - and - you really do a very good job.

A graphical link from a subnode (1.2) to a parentnode (2) disappers when closing the parentnode (1). It would be nice to get an option wich allows to keep the link and let it point to the parent while it's node is not visible (see attatchment).