Hello,

How do we set the dwaa compression level on the rop_image node?
https://www.sidefx.com/docs/houdini/nodes/out/image.html#optimization [www.sidefx.com]
There's no mention of the compression level.

How do we export a single channel exr file?
I can specify the AOV name, but it will always export the channel as rgba_extra.Z (<aovname>.Z). I would expect there to be an option to write out an image with only rgba.r like how it is possible from Nuke with a Write node that only has the red channel checked.

To answer the first question, the changelog was not under cops, so I missed it:
21.0.479 The DWA compression level is now exposed in the Image ROP.