If you look at my schematic and coding using this link it may help you understand a little better. When we press BT1 it changes from _H to L. On the LCD screen when the code is running you will see BT_1 BT_2 BT_3 BT_4 and POT#####, those are for the 4 buttons and the Potentiometer. I know how to relabel the button but we want to be able to click BT_1 and then have the potentiometer function in there where we can set the value (current) to say 1 amp then click BT_4 and output the load.
Here is the tinkercad program we are using and trying to alter. We have no experience with Ardiuno and programming and seeking all the help we can get. Thank you