I think this may be what you are trying to do. Simply use this as a tcl fragment inside the xlate:
set varlist [split $xlateInVals “;’]
set element1 [concat [lindex $varlist 0]IN]
set varlist [lreplace $varlist 0 0 $element1]
set xlateOutVals [join $varlist “;”]
I’m sure there may be a simpler way to do this, but this should be able to get you started.
Thomas G. Rioux