Yes, it's as Naomi Nosonovsky indicates, but I was referring to my alternate wait window class:

The class is designed to print any value like WAIT WINDOW. Whatever you pass in is TRANSFORM()'d into a character string for display, but you can prepare any text string you want and pass it in, including multi-line items using CHR(13).

See attached. You can call it as often as you like, and it only updates on a fixed basis, so it looks smoother.

Sample use:

SET CLASSLIB TO ww.vcx
PUBLIC goWw AS ww OF ww.vcx
goWw = CREATEOBJECT("ww")

goWw.wait_window("Hello world!  Timeout in 2 seconds.", 2)
goWw.wait_window("Persisting message")
goWw.wait_window_clear()

>Pass it in "where"? or to "where"?
>>Prepare the string however you want and pass it in.