The Spark Horizontal/Vertical layouts don't have this functionality. What you can do is use a combination of containers/groups - for example to layout vertically several items and then center them vertically within a given area you can do something like this:
And border? Another combinations of a few containers? How about dropShadowVisible? Few others?
There is really only one other property that vertical and horizontal groups need, center on axis. To want to control multiple positioning on a container you use a simple layout, its not rocket science, you have center/middle/top/left/bottom/right. vgroup and hgroup serve their purpose pretty well.
Im not sure what borders and dropshadows have to do with the topic, so do you have a serious question ?