Hey cneuy3.
Your process does sound good, thats what I would recommend to my students.
However in your initial quesiton you make an assumption that you should be playing according to Nash.
As we talk about in this article
http://www.icmpoker.com/en/blog/nash...tegy-in-poker/ blindly following Nash is rarely a good idea, since it leads to non exploitive plays and minimizes potential profits.
Unless you are playing the highest stakes (60$+ hypers for example) you shouldn't care too much about Nash ranges, and care more about ranges at your tables.
That said, the answer on your question is no, currently thats not possible in ICMIZER. I plan to add something like this as it seems to be requested, after I finish current features (FGS & Quiz).
But I recommend you not to focus so much on Nash, its not panacea and automatical win strategy, its far from it actually. Its a good starting point, no questions about it.