Trying to book a RT EWR to Europe in Business.

Outbound has R space and I'd like to use a GPU so need to force "W" or higher.

Return R=0 and I'd like to book it into "P" for discount C class.

On .bomb if I force "W" and elect "Economy" for the outbound and "Business" for the return, the outbound looks good, but shows nothing for the return (of course not, there is no "W" business). Without forcing "W" it prices the outbound Economy in "S" and the return in "P" which then wouldn't allow me to upgrade the outbound.

Is there any way to force what I'm trying to accomplish or is this a call and hope to get a competent agent issue?