The MFeedbackLine class is used to display information back to the user. The format for the feedback line which indicates the number and type of the arguments should be set with the setFormat method. The values of the arguments should be set using the setValue method.
The format begins with a format specifier "^" followed by the format size, format decimal character ".", decimal size, and format type. For example: the format "^6.3f" which specifies that there is going to be one value given, it is a float, with 3 decimal places shown.