CW with N1MM+ Logger

Hi Phil, thanks for your reply. I have N1MM+ connected to the IC-705 wirelessly through wvfiew using a virtual serial port. (N1MM+ is reflecting the frequency which I tune the radio to). But the CW, generated by N1MM+, does not key the IC-705. I have tried N1MM+ using direct USB connection (not using wfview) and it keys the IC-705 OK. So wondering whether there is a trick I’m missing to do CW wirelessly?
73, Tim