Adding iterations in RQM

Following is the scenario that I would like to add in RQM v3.0

For Example:
=========

The initial set (Say SET) contains a set of say 10 Testcases . Execution of this set results the following:

3 Testcases PASS
2 Testcases Fail
3 Testcases BLOCKED
3 Testcases NOT AVAILABLE

Within this set, I want to create a subset (say SUB-1) which is made to execute the Testcases excluding the Testcases which are passed during the first run.

ie; With reference to above example, the following Testcases are made to run within the subset. (3 Testcases which are passed will not be a part of the subset as it was executed successfully in the first run)

2 Testcases Fail
3 Testcases BLOCKED
3 Testcases NOT AVAILABLE

Lets say that the Execution of this subset (SUB-1) results in the following:


1 Testcases Fail
3 Testcases BLOCKED
1 Testcases NOT AVAILABLE (2 Testcases = NOT BLOCKED are now passed)


I again created another subset (SUB-2) within the subset (SUB-1) and add the Testcases (excluding the passed Testcases) which were made to run in SUB-1


1 Testcases Fail
3 Testcases BLOCKED
1 Testcases NOT AVAILABLE


Executing the SUB-2 results in some testcases to be passed. Say;

0 Testcases Fail
1 Testcases BLOCKED
1 Testcases NOT AVAILABLE


So, I created another subset say SUB-3 and include the following testcases which were not executed succesfully under SUB-2

1 Testcases BLOCKED
1 Testcases NOT AVAILABLE

Executing subset (SUB-3) results in all testcases  to be run successfully.

Overall any testcases which were not executed successfully in the initial run are made to re-run within a new subsets yielding successful runs. The collective results of the execution of these subsets will contribute to the result of the set to which these subsets belong to.


Results:

   SET   =      SUB-1     +     SUB-2     +    SUB-3

Any inputs on how do we achieve such iteration scenarios in RQM ??