[Elecraft] seeking help to use fldigi for CW with K3 and KX3

[jsdroyster at nc.rr.com]

Hello to all!
My husband Larry, NC4LR, has a neurological disease and cannot manage CW manually.
I want to enable him to use fldigi for CW since he now uses it for PSK and RTTY.

Don Wilhelm has told me to leave the K3 in Data-A mode, which works fine for PSK and RTTY using fldigi. 

Then in fldigi, I choose op mode as CW and leave the box under frequency as USB (where it is for PSK and RTTY also).
 
I can see CW signals on the waterfall but nothing gets decoded.
I tried changing the WPM setting but this did not help (I understand you are supposed to get the WPM approximately matching the incoming signal). 

What could be preventing decoding??   Any ideas? 

THANKS for any help anyone can offer!!!!
 Julie KT4JR