Yeah, regarding the reorganizing abilities, the original design was specifically preventing that. Originally, I wanted it to be sorted like a sorting system, or defragmentation, but I either didn't have time for it or have doubts if it would be fun. Though, you this has given me an idea I can implement.
In general, I can try to improve the UI design, and possibly merging the shop and owned ability panels into one, in a tab, and so on. I could also use a "drop in animation" while you're looking at Owned abilities, letting you know what ability is being added to the shop.
Perhaps that will work, or perhaps it won't. I'll need to walk around the idea.
Thanks for playing my game!