PSAD 1956 Cartographic Grid

Discussion created by adrian_s on May 3, 2013
I am looking to create a cartographic grid in the Provisional South American Datum 1956 co-ordinate system.  In the Grids and Graticules toolset there isn't an xml template for this co-ordinate sysytem.  Does anyone know if there is one publicly available or if not how easy is it to create an xml template from scratch.  Thanks