set function random without replacement

A rather painful way to do this would be to have 10 global variables that you set to 0 initially, which you set to 1 when they have been chosen. Each time you draw a random number, do it in a while loop and check whether that value has been "taken" already by checking its global variable. If it has, force a re-sample. Global variables are needed if you're trying to avoid re-use between trials, but if repetition just needs to be avoided within a trial, you can use local variables ($) that are initialized at the start of the trial. Something like this:

# imagine you've already set up the 10 "taken" variables with the values of 0
set $done_choosing 0
while $done_choosing == 0
set $my_target random 1 10
if $my_target == 1 && &one_taken == 0 # if 1 is available, we can keep the sample and exit the loop
set $done_choosing 1
set &one_taken 1 # set to 1 so we don't choose this number again
fi
if $my_target == 2 && &two_taken == 0
set $done_choosing 1
set &two_taken 1
fi
# and so on... handling three through nine...
if $my_target == 10 && &ten_taken == 0
set $done_choosing 1
set &ten_taken 10
fi
while-end