Hi Bill, welcome to the forum!
You could use the option 'Post process mask with Variable - use {NEWNAME()} in Variable'.
I do not know how you source filename is, but lets say it's: YYYYMMDDblabla.txt
So the 1st 8 characters are the date.
You need to trip off the 1st 8, so use the substring funtion:
Use this: {STRING(Substring|{NEWNAME()}|8|???)}
We don't know the length of the remaining part, so we need to get the length of the filename and subtract 8 from it.
Use this: {MATH(Add|Integer|{STRING(Length|{NEWNAME()})}|-8|0)}
Now you can combine both by replacing the ??? and you get:
{STRING(Substring||{NEWNAME()}||8|{MATH(Add|Integer|{STRING(Length||{NEWNAME()}|)}|-8|0)})}
This will copy the file to a new filename named: blabla.txt
It might be different in your situation, but this is a way to go.
Regards
Erik
Uses Visualcron since 2006.