Your probably using it wrong then... this is exactly the functionality your looking for. It guarantees the position of the object relative to the boundary of the layout regardless of scrolling or scaling. You only need to specify what corner (top,left - bottom,right , etc) to make sticky.
I my case I have text in the top left corner of the screen but I use inner scaling so it can crop of some of screen and potentially hide some of the text. To ensure my text is always approximately 50 pixels (give or take) or so from the top left corner of the view-able layout I set the Anchor Property "Left edge" to "window left" and the "top edge" to "window top" ensuring that the top left corner of my text is fixed in its location to the top left corner of the view-able screen.
I would play with it a little more. Or check out the manual. I'm sure this is what your looking for.