Thank you Jeff. I just checked the Adobe site regarding supported cameras. LR 5.7.1 supports the EM-5 but does not specifically list the EM-5 Mk II. I'll give it a go when I get home tonight.
However, I'd still like to use the COPY AS DNG technique to address processing RAW files of new or unsupported cameras in the future. What I am doing is open LR5, plugging in the SD card, then LR automatically opens the window that allows me to choose IMPORT. I choose COPY AS DNG and the program fails to import, stating the file as unrecognized.