Displaying File information with text node

I'm working on a CG game cutscene.
Working with frame sequences.

I would like to be able to display the file being sourced in a text node.
I know I can display the currect frame in shake by using "{time}"
I also know I can display the entire sequence name using ":FileSequence.baseFile"

I would like the display the current frame being sourced at each frame.
It happens when you flip book an image sequence. You see the .exr /.tga displaying at the top of the flipbook.

I would like this becuase I'm being forced to use image sequences that are rendered every 4th or 2nd frame and having to slide alot of stuff around. I would really like to have the option to display the image being sourced at any given shake frame.

Any help is appreciated.

Stuart

There might me a "slate" macro around that already has the various snipets of code you're after.

T