OK So I've gotten around to looking at library features and have run into some things.

I Know I'll get people started by saying this: I AM trying to emulate Sheet metal becuse it has some limitation for my application (mirrored part being the biggest problem).

The problem I'm running into is that I can't get the target part to recognize (recalculate) an equation ("Bayonet Flat length") after modifying one of the controlling dimensions.

It works when I modify the dimension in the .sldlfp.

Take a look! Any comments are welcome.