One thing I found very frustrating about the BizTalk Mapper is that you cannot reuse scripts from one Map in another, after having to do about 7 maps and trying to use the same Script in all of them, I came up with ScriptToids. ScriptToids are basically reusable pieces of script in a single FuncToid. These ScriptToids can be reused between different Maps in BizTalk Server. ScriptToids also come with a ScriptToid Editor with which you can edit your Scripts.
