Steve,
Since you are using direct connectivity, JMRI is providing the timing for your flashing reds. So, you should not need to change anything in CATS, but make your changes in JMRI, as you first suspected.
Thanks for the kind words and I did read your articles in the Dispatcher Office. Nicely done. I will look through your articles and see if there are any other clues as to what could be going on.
Rodney
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Because I am using the direct connectivity/interface between JMRI, I didn't have to fill in any of the decoder addresses. In order to properly follow your directions, do I now need to fill out all of the decoder information on the screen below, or, just that for the "flashing red"?