The above post isn't directly related to the new SET PROGRESS, just a newly discovered status msg that Aware displays at unknown times.
ONE known event is on the save of a form. there may be others.
BUT AS TO SET PROGRESS, I can't get it to work.
Was trying NOT in a background process (which is what the video shows), but here:

Was just trying to display a status message when a process shows a Form.
I get no output in the "status message" area, WITH or WITHOUT the Status Bar enabled/disabled.
Perhaps its because SET P is to be used in a background process as shown - and it doesn't work when placed in a non-background-running process.
IN ANY EVENT, anywhere we could call SET PROGRESS we could just as easily EXEC_JS to call our own message bar, as Henrik has in his "notify" functions. So while this was kinda neat, I'm not sure if its all that useful OUTSIDE of its designed use.