Outliers in BRAT

I’m using BRAT ( The Broadview Radar Altimetry Toolbox) to creation map about sea level.

But i have a question: Is it possible to remove outliers before map creation? I need it to my master thesis but I don’t know how to do it.

maybe you are lucky in the BRAT forum: http://www.altimetry.info/forums/forum/altimetry-forum-2/