>Looks like this always works in revert order:

KEYBOARD "hello"
WAIT WINDOW "hello"

>What should be done to delay the second line execution until keyboard is completed?

I've done something like this in the past.

KEYBOARD "hello"
DoSleep(.1)
WAIT WINDOW "hello"

PROCEDURE DoSleep
LPARAMETERS tnDelay
LOCAL lnSeconds

lnSeconds = SECONDS()

DO WHILE SECONDS() - lnSeconds < tnDelay
   DOEVENTS
ENDDO

RETURN