Chris Rydalch

Yes you can set the Attribute Wrangle to Run on Elements of Array Attributes, and set or adjust attributes/primvars as needed. Python could also work, but you'd probably want to use Numpy to be performant.

I would look into how you're launching husk, as these search paths should always be setup internally. There isn't any env var you need to set. If you can repro the problem with a vanilla, basic setup, please log a bug for it. Thanks!

Paths that use $HFS (and $HH is the same as $HFS/houdini), are turned into 'search paths'; you can recognize search paths because they don't start with a period, slash, or drive letter. This was done intentionally to avoid making fragile absolute or relative paths that point to things that ship with Houdini. Houdini automatically adds $HFS as a search path, so it can find these assets automatically.