About ANSI notation I found this Wikipedia link for codes:
http://en.wikipedia.org/wiki/ANSI_escape_code#Codes
Yet I don't know if they work on Amiga script 'cause I've to test, but it seems higly possible.
I would like to add to the screen suggested by Boo Boo (Thanks) a red cursor (but writing white). I'll try later if I can get it, but any suggestion will be much appreciated.