I know that I've purchased various skill learning upgrade cards, but frankly, I can't remember which ones I have and which levels I'm at (and the laundry list of upgrade cards isn't really categorized at all to make the ones I have easy to find). This is especially needed when I'm looking at the skills tree, and I'd like to potentially pick ones where I have the highest level of skills learning upgrade cards. Would love an indicator on the skills tree to tell me what my upgraded skill learning level is for each group of skills. Thanks for considering!