arcymaszon

hello, i am quite new to houdini and i recently encountered a problem: i have a polygon which i divided by bricking. then i found all primitives that are too small and made a new group with them. next i made a foreach node, and wanted to iterate only by primitives in this group (to merge each one to its nearest neighbour). but foreach can only iterate over all primitives, i cant select specific group. how can it be done? also another question, inside foreach loop, if im iterating over primitives, how can i access its info (position, rotation, etc) to write in parameters?