Arduino Uno & 16x2 LCD Display w/ 4 push button and 2

Hello, I'm looking for assistance in generating a menu for my project. I need a 4 button menu for our design. We want to able to push 1 of the buttons and then use the potentiometer to vary and change the settings within. For example we want to be able to push button 1 which will be labeled "Constant Current" and open that menu and be able to set a certain current value we want. I have attached the schematic and layout of our design to hope help some more. Thank you

Arduino LCD Set Up and Programming Guide

DFRobot I2C RGB Backlight LCD 16x2 Display Module for Arduino (Black Text) - RobotShop

LCD_KeyPad_Shield_For_Arduino_SKU__DFR0009-DFRobot

arduino uno - How to limit backlight LED current in 16x2 LCD - Arduino Stack Exchange

Using LCD Displays with Arduino

Arduino - Display Temperature from LM35 Sensor on LCD

Flappy Bird Game using Arduino, 16x2 LCD & Push Button - ElectronicsHub

Arduino LCD using a 16x2 Liquid Crystal Display - Pi My Life Up

Relay switching corrupts 16x2 arduino LCD screen - Project Guidance - Arduino Forum

Arduino in practice (part 2) Electronic components. Distributor, online shop – Transfer Multisort Elektronik

OSEPP - 16×2 LCD Display & Keypad Shield

Lcd1602+i2c 1602 16x2 1602a Blue/green Screen Hd44780 Character Lcd /w Iic/i2c Serial Interface Adapter Module For Arduino - Integrated Circuits - AliExpress

Turn Lcd On And Off With Push Button Using Arduino

EE 109 – Lab 4

LCD Button Shield V2 - DEV-13293 - SparkFun Electronics