force non-overlapping groups with layout

Question

Is there a way to force non-overlapping of groups (except, of course, a group within another group)?

Example: the layout I would to obtain automatically is:

But what I get when I use the tree layout is:

There seems to be no option to force non-overlapping of groups 1 and 2 within group 3, and non-overlapping of groups 3,4 and 5.

 

Answer 1

Use Hierarchical layout instead of Tree layout. Be sure to set option "Layering Strategy" to value "Layout Groups" on tab "Grouping", though. Try "Horizontal Group Compaction" value "Weak" and "Straighten Edges" on tab "Edges" but not "Symmetric Placement" on tab "General" as well.