There is a new blue button just at the right of the button you press to go in a quest.

From top to bottom :

• Enable Macro system. ON/OFF. The system will use your previously saved auto-battle settings.

• Numbers of time you want to do the quest. 1 ~ 100.

• Numbers of gems allowed to be used. 0 ~ X gems.

• Enable auto-refill energy. ON/OFF.

• Enable auto-continue upon game over. ON/OFF.

• New unit screen pause. ON/OFF. Upon capturing a new unit, the system will pause. You have to manually tap the screen to resume.

• Use friend. ON/OFF. If it's ON, the system will pick a random friend. If OFF, the system will go without any friend leader.

Once you're done setting it up, press the back arrow at the top. You will have a message warning you that the system will stop if you have too much Units/Item or the selected quest isn't available anymore (Parades, daily dungeons for example.)

Then, you should have a red line above the Macro button. If not, go back to step 1. Before launching the quest a recap screen should appear. From top to bottom : number of runs, use of gems, number of unit, number of items.