(I guess this could be in the SCP too.)
When I start on a new new mission or whatever I can't get the Messages and Mission goals in the Event section to work.
So I'm trying to do a send-message-list once Beta wing arrives.
So it will be
Event Name
-when
----has arrived delay
--------0
--------Beta
----Do Nothing
So I right click on Do Nothing, go to Replace Order, then Change but 'Messages and Mission Goals' is greyed out.
For the record, I'm using Fred 3.5.5 with Goober's latest builds. And I didn't have this problem until I installed the zpack. (And I'm not sure if that could interfere).