I’m not able to offset objects in a negative direction (outside the perimeter of the host) any more than about 1 foot while I’m able to offset it in a positive direction (towards the inside of the host). This is in Filters: Boundaries: Offset.
I’m not sure now that the negative distances even work.
Skatter cannot offset boundaries in the negative direction (it would be ambiguous depending on the host’s shape). We’ll fix the number input so that it doesn’t accept incompatible negative values anymore.
What do you aim to achieve? Maybe there’s another way to produce a similar result.