Two things..

-=-=-

for n=1 to 5
	if n==4 then
		Print "Number 4"
	else
		print n
	endif
next
print
for n=1 to 5
	if n==4 then Print "Number 4" ;else;print n
next
print
for n=1 to 5
	if n==4 then Print "Number 4" else print n
next

1. For Next!
Hurray!!
It mostly work. Don't try to confuse it!!

2. Else.
Else works, but .. again, try not to confuse it!

Note in the above example, the lower of the three tests doesn't have line markers around the else, so it gets baffled and breaks a bit. Hopefully I can fix that in time.
I also need to rejig the way if's actually function to make them a little quicker. Right now.. .. Not so much!!

For now, it works "enough", and the For's seem to be functioning ok, too.