Is it possible to render out custom AOVs with the new Ocean Procedural and Karma XPU? I am not able to insert Karma AOV nodes in the Ocean shader network that is generated from the shelf tool.

Foam and cusp is only primvars, so you should probably get this working creating a primvar AOV.

Karma Render Settings>Image Output>AOVs(Render Vars)>Extra Render Vars, and create a new AOV with Source Type set to Primvar.

Ah true thanks for the tip. No need to use an AOV node in the network.