Tracing Hybrid Columnar Compression in an offload server

I had previously commented on how to use the FPLIB facility in a trace event but the question came up today of how to trace HCC in an offload server.  The facility name in this case is ADVCMP (Advanced Compression) and the hierarchy is:

ADVCMP_MAIN
    ADVCMP_COMP
    ADVCMP_DECOMP

No compression occurs on the cell so we are only interested in the decompression tracing in an offload server.

So in this case the correct syntax is [facility.event] so: 

cellcli -e 'alter cell offloadgroupEvents = "trace[advcmp.advcmp_decomp.*] disk=lowest"'