Allow viewing entire tree from node in middle of tree

[zspitz]

When visualizing a node in the middle of a tree, the current behavior is to only display the subtree of that particular node.

Alternative behavior might be to show the entire tree, but the visualized node should be selected.

Perhaps the second behavior should be the default, and the first could be gotten to using the "Scope to this" context menu option?

@kaby76, would that cover all the bases?

[kaby76]

I would think displaying only the sub-tree should be the default, only because there may be an issue of speed and memory in displaying the entire tree. But, it's up to you.