If while using Keyword Transformer you wish to have your output keyword list contain the selected keyword transforms only, and not the keywords entered, there’s a nice easy way to do it. Just copy the list of keywords in the input box to the exclude box. This will do the trick.
Note that this only works for clean keyword lists. If you don’t have a clean list to begin with, just run it through Keyword Transformer once with no transforms selected. Your output will then contain a clean list that you can paste back into the input box and the exclude box.