How to resize rectangle shapes with proportionally of line thickness

Hello

I have problem with resize rectangle ( shapes ) to all border size were proportionally. Of course I can resize using video tranform but then I have different line thickness ( width and height ). How to solve this issue ?

there's an app … no, a free rippletraining tut for it, dressing exactly that:


And Welcome, Piotr, to fcp.co

I thought also that only way to create project with rectangle in Motion.
Thank you very much for this movie
This is exactly what I wanted