Maybe I'm missing something but unfortunately groups are not supported via Forest sets. Any chance to implement it?
I'll explain my situation (latest FP version): I put the dummies of the opened groups on a separate layer, expose this layer in set, add the set to forest geometry list. As result only not renderable dummies are scattered, though it supposed to pick up the content of the groups ("include children" and "keep group hierarchy" options are ON). The workaround and less effective way is to ditch forest sets and add groups straight to geometry list.
Topic: Forest sets in layer mode won't support groups (Read 1065 times)
