2) It would be nice to display something like this.
I think it's important to let the player intuitively show the actor's state.
5)
This is the UI part of the targeted battlers mentioned in question 4.
For example, show enemy information with skill A,
If you select skill B after canceling, the target information of skill A will still be displayed. If you change the skill range, it changes to the B skill information. It seems like a minor bug.
If you can't solve question 4, you have to hide the UI, so it doesn't seem like you need to fix it quickly.