Navigate with TTGO T-Display's builtin buttons

Hi, i was trying to navigate through LVGL objects with TTGO’s builtin buttons, but i didn’t find any way to assign LV_KEY_LEFT/RIGHT/ENTER to these button pins (0 and 35). I was following this tutorial from docs, but i had no clue on how to bind Left to pin 0 and Right/Enter to pin 35 (Press/Long Press). I’d appreciate any help.