Automatic Battles (Idle)
To start the auto battle, tap/click the button on the top left battle screen. The icon will spin when it is activated.
To set the auto battle setting, tap/click your avatar on the top left screen,
then you get this window
1 - Enable this option to disable the auto attack when entering a battle.
2 - Enable this to auto-repeat battles within the stages/floor
3 - Adjust this number to auto-recovery on the next repeat
You can adjust this according to your needs!
Notes: if you want to use skill in auto attack (assuming that the option number 1 enabled), do not tap/click immediately after entering the battle, wait until the attack menu appear first. Then tap/click it just before you use a skill.