In Altium 18.1, I need to create a layer for a flex stiffener. I created a mechanical layer and did a polygon pour for the entire board area. Now I want to slice the polygon pour to remove the pour from flex bend lines.
It appears that slicing a pour on a mechanical layer doesn't work. The slice line vanishes on the last click.
I am able slice a pour on a signal layer. Am I stuck using a signal layer for a stiffener or is there another solution?