AI improve option

The AI improve option is wonderful; however, sometimes it misses the mark and I'd like to undo, recraft my original lesson to be improved and then AI improve again, but it appears that AI improve can only be used once. Another feature I'd love to see is under the custom AI improve is telling it to "create a lesson for…" and like ChatGPT, have it create an engaging lesson for that day. Just some thoughts for improvement!