[Andrew Saunders]

What I’ve ended up doing is as Kalleheikki suggests – using a checkbox effect which at least provides a means by which a user can specify whether the preset should assume the layer is in CR state or not. As Steve points out, having that checkbox doesn’t actually change the the CR state itself. So in order for the preset to work the user must manually make sure the checkbox state matches the layer’s CR state. It’s a hack but it’s the best option assuming there is no way for an expression to check the CR state directly…