Use 3 I2C AS1115 displays with Arduino

I have a project where I need to use 3 AS1115 I2C displays with an Arduino.
I managed to get 2 displays working but I can not get the third one. I checked the forum and the question of addressing multiple displays came up before but was not addressed. Does anybody have a sample code they can share to use with 3 or 4 (from what I can tell the AS1115 can have up to 4 different I2C addresses) AS1115 displays?

Thank you for your help.

I will recommend using a i2c mux