Allow shapes outline to be inside or outside, not only middle?

Adding another vote for this feature in this thread, since feature requests seem to be ignored.

If the developers need a use case, here's mine. I have a course that uses snip corner shapes as callouts, dialog boxes, you name it. Due to the inability of Storyline to align strokes to the inside, not the outside, I can't line up my boxes properly and there's always a blurry edge sticking out from under the top shape - so I have a bottom shape that's dark, and a smaller white shape on top to create the illusion of an inside-aligned stroke.

I just got a note to reduce all box edge strokes by 50%. Because this is not possible in Storyline, I have to:

1. Make a square that's 50% smaller (5px by 5px instead of 10px by 10px)

2. Align that to the outside of the bottom layer.

3. Drag the white shape to be flush to the side of the 5px box.

4. Repeat on all sides as needed. For multiple items on every slide.

If Storyline had this functionality, it would be as easy as clicking through everything with the format painter, then making a few tweaks. Please add this functionality.