Spirit Mahjong 2 [Spirit Skills] No Gallery from Low to Max Level? Can Only Keep One, 😭

The official lacks skill details (雀靈技法) from one star ⭐ to the highest star 🌟! Even if you draw a high-star ⭐ skill... Players of this game must be like me, confused! [It's impossible to know the types of 雀靈技法 and all their individual skill contents] For example, I'm currently on the second skill, 2000/2000 (薄技在身) of 雀靈技法. 1. Players want to change to a better skill that suits them, but there isn't a complete set from (the lowest star) to (the highest star?) with all the detailed information of 雀靈技法! As a result, although I've already obtained: A. A four-star skill (In Classic Mahjong, if you are the dealer, 12% of your winnings are deposited into the treasure vault). However, I had to discard a similar B. four-star skill (In Classic Mahjong, if there are wind tiles in your hand, 18% of your winnings are deposited into the treasure vault) before. Which of these two four-star skills, A. or B., is better or worse? It's a matter of opinion! 2. The key point is that once a player discards their current skill, it won't be selected again! But you discover that if you want to go back to a previous skill, you can't because you've already discarded it! 3. Therefore, regarding this pain point😣: I hope you can add~ a cloud space for players to temporarily store 'Spirit Skills' that have been swapped out, or display on the game's homepage information about all 'Spirit Skills' from one star to four stars and above 👍.