I use the manual relayout mode to layout my branches in a way, that release branches are on top, the trunk is in the middle and all issue branches are below.
This way I have a fast overview of the changes that are released.
[They also have different colors ;)]

All these branches have an attribute called "role" with different values:
"Release" for releases
"Trunk" for the trunk
"Patch" for issues

Now, it would be VERY nice if I could teach the branch explorer, that branches should be layed out in an order (top to bottom) based on the attribute "role".