Consider this an urgent request for this feature!
I have begun working on projects generated with the Microsoft Visual Studio Team Edition Database Developer Version (aka DataDude). Many of the scripts must be run in SQLCMD mode in order to utilize project variables, stored in *.sqlcmdvars files.
When such a query is loaded into the SQL Management Studio and the query session is set to SQLCMD mode, it parses correctly and executes correctly. However, SQL Refactor cannot perform ANY functions, claiming there are errors. The script summarization feature, which I find particularly useful, is completely unavailable in SQLCMD mode.
See my post in the related forum for SQL Prompt. http://www.red-gate.com/MessageBoard/viewtopic.php?t=9671