
On the second screen of the setup menu page of my game. I have highlighted buttons with teams that would like to add to the game, but do not know how.
Disabled buttons at the moment
1)Full screen and window mode
2)speed text
3)3 speed reading text automatically
4)Enable effects on screen
5)Saving as miniatures
6)Enabling and disabling character voices
7)Volume BGM, sound, and voice.

secondary questions
How to make when choosing a new melody on the screen BGM previous melody stopped?