Some script extensions

[temnix]

I would like to go through trap and door scripts, for containers and doors that are trapped, and extend them in such a way that the trap may be triggered on an unsuccessful disarm attempt. For this the contents of the file should be copied on top of it, then I would replace, sextually, Opened() with DisarmFailed() and a random blank RESPONSE rate. I believe I can do that, but I'm having trouble adding the file to itself. I've tried -

COPY_EXISTING...

APPEND_FILE_EVALUATE TEXT ~%SOURCE_FILE%~

And nothing.