Thank you Kelly and Jason.
PTT in FLRIG does work. I changed the line in the direwolf.conf file to PTT RIG 2 localhost:4532 as Jason suggested - and now the radio goes in to transmit appropriately. Now I just need to find a packet server in range... There isn't one at my 'home base' (we live full time in a travel trailer). But next time we get on the road I am sure I can find one.
Thank you for the help
Jim
KM6GUO