I guess a more flexible way of doing things would be if you can somehow group different components together, so when you move one at design time, the other follows. I know you can do this with panels, but I find lots of panels a bit messy.
I notice, @wp, you mention "which you anchored to the TEdit" which maybe sounds like a method of doing that, but I couldn't find anything on the right click menu to link two visual components together.
Thanks.