Too much Randomization

[L4lab]

I am working in DirectRT and I am attempting to do RWG. While DirectRT does randomize the tasks, it does so in such a way that it repeats one line instead of randomizing the four and using each of those four only once (as we would like it to do).

For example:
---The Input---

block-trial-RBG-RWG-stim
1 1 0 1 triangle
1 2 0 1 ball 
1 3 0 1 heart 
1 4 0 1 star

---The Resulting Orders----

Test 1 Test 2 Test 3 
-triangle -heart -star 
-star -star -ball 
-heart -ball -triangle 
-triangle -star -triangle

Is there a way to randomize the trials such that the results would appear as:

Test 1 Test 2 Test 3, etc. 
-triangle -heart -star 
-heart -star -ball 
-heart -ball -triangle 
-ball -triangle -heart

so that each trial is randomized but only appears once in a test?