apply c2rcc mask cloud

Dear all,

Is there any practical way to apply “cloud_risk” mask from C2RCC? I’m processing S3 OLCI using C2RCC.
I’ve tried to apply mask using “Land/Sea Mask” tools, but it failed with the response like this

“org.esa.snap.core.jexp.ParseException: Undefined symbol ‘c2rcc_flags.Valid_PE’.”

thanks for the help