Used with the click, play, and prepare commands to specify a point on the screen. Also used with the read from file, read from process, and write to file commands to specify where to begin reading or writing.
Examples:
click at 140,200
play videoClip "Movie" at the clickLoc
read from file myFile at numOfChars until end
Use the at keyword to specify where to click or where to start reading or writing.
A point consists of two numbers: a vertical and horizontal distance from the top left of the current stack, separated by a comma.