Customizing the metamodel : Keywords for USRPROPS : EDIT
  
EDIT
In conjunction with the keyword BEGIN (or { ), indicates the beginning of the definition of a property. The keyword EDIT carries the meaning, "This is the beginning argument."
Example
SYMBOL "Process" IN "Data Flow Gane & Sarson"
{ PROPERTY "Short Description"
{ EDIT Text LENGTH 1500 } PROPERTY "Number" { EDIT Numeric LENGTH 4 }