I struck up the courage to actually ask for help on the forums after some sleepless nights.

Usually the search gets me where I want to go and if something is hard I am usually doing it wrong.

I have a Rail Sop creating RailGroups which i want the Skin Sop to respect. There are several groups created and i want each group to only skin using the rails in that exclusive group.

I skin one at a time, but being Houdini, I am certain there is a procedural solution which I havent found out yet. The Rail Sop has a “rail by pairs” option which pretty much what I a trying to do with the Skin Sop.

in order to properly assist, we need an example hip file of what you are trying to achieve

ok

see attached!

the easiest way to do what you want is to use a foreach sop based on groups

I learned something new today, its exactly what i was trying to do.

glad to help!