I want to insert a LOOP into an If else statement.This is what I have so far:

WHILE @ERROR = 0
"Project Folder Number:" ?
GETS $projfile
IF EXIST ("$workingdir\$projfile\*.dgn")
SHELL "XCOPY $workingdir\$projfile $DestDir\$projfile /E /I /Q" ?
ELSE
***want to loop back to WHILE but simple LOOP doesn't work***
ENDIF
LOOP

I kinda need this ASAP, so anything will help.