I would like a way to temporarily disable caching on the server so when I make changes to a file via FTP I can see the changes immediately.  This would really help for development, especially when trying to fix a bug.  Currently when modifying a file it can take around 10 minutes before the changes are made.

I think it would be best if you could clear/temporarily disable cache for a specific file or directory and have an option clear cache on sub directories  to minimize the effect on the end user experience and mitigate the effect on server performance.