Formatting Numbers in RTC

Inspired by Belias, that suggested me a trick to cut hour from Date Field in RTC (put a "d" in the format property of the textbox that contains that field), I started to wonder if there was a way to format Number Fields in RTC without copying the "Format Field" created by the system in Format property.
by chance I put a "n" in the format property and wow... it works!
I prefer this method because in many occasion I had problems with "Format Field" and I didn't manage to solve them; in this way I save time and I have no problems.

Regards!