In Codeunit 1, AutoFormatTranslate trigger, there is this code:
CASE AutoFormatType OF
...
10: EXIT('<Custom,' + AutoFormatExpr + '>');
Since this function is supposed to return a valid FormatStr, I searched for documentation on a format string component named <Custom,...>, but could not find any.
Does anybody have any insight into this, or is that code fragment just garbage?