1. For the layer above a group
2. For the group above a layer, or a group
3. For the layer above a layer or a group that has layer mask
4. For the layer that has layer mask above a layer or a group (that has layer mask)
I was working in CSP and using clipping masks all over the layering quite often, just wish these features are available in Paintstorm too
![Twisted Evil :twisted:](./images/smilies/icon_twisted.gif)
Because painstorm's brush engine is unbeatable IMO, love it so much, and it has a Linux version.