I will see when I have more motivation and time to do bigger changes.
However, I added "tip" feature. Planner will give you a notice, if your build has some sort of weird choices. For an example: You have EN5 and you click "Done" -> You will get noticed because of your EN5 (EN4 would be better choice). But you can continue with the choices you have done, if you want. Maybe this is nice add for new players, dunno.
There is currently 5 tips: EN check, IN check, CH check, LK check and tagged skills check (speech and gambling). Feel free to suggest new ones or changes to current ones.