Need to change some things.

Hello, it would be nice to see some gameplay changes.
I would like to change the characteristics of characters and monsters depending on their level. That is, to change the skills of certain classes of the second level and higher.
I would also like to create items for stores, change their characteristics and adjust the price. It would be cool to customize the drop from monsters and its rarity.
And further. I cannot configure multiple levels for the same region.
I really like your game, I think about creating the game and its balance in my free time, but the game limits me in this.