this project recently finished about a month ago. went off amazing. if you want i can send you my RTI file via email.
unfortunately you cant emulate any kind of press and hold functionality... but what i did do was create a task using variable tracking to emulate a "Stepped" dimming function. i can even send you the vantage file if you want to import the task programming, then you can just copy and paste... youll have to re-assign the load and LED assignment, but its relatively painless.