LCD clear

I didn't ignore any advices, I tried to use them but without examples it ws hard to implement them

Did you even look for examples ? A Google search for "arduino lcd clear example" returns a link to LiquidCrystal - Arduino Reference The irony us that you don't need to clear anything as was pointed out

Now when I have this value in EEPROM I will try to send it to LCD dydplay.

I have said this before in this thread, maybe the other one, possibly both.

There is no need to put the value into EEPROM if all you want to do is to freeze the display by pressing a button. If you do put it into EEPROM and get it back then how are you going to print it, and what happened to your solution of putting it into an array ?

UKHeliBob:
Did you even look for examples ? A Google search for "arduino lcd clear example" returns a link to LiquidCrystal - Arduino Reference

From there I started = name of the thread

I have said this before in this thread, maybe the other one, possibly both.= That what I did

There is no need to put the value into EEPROM if all you want to do is to freeze the display by pressing a button. = So far I can see that as delay for long time

If you do put it into EEPROM and get it back then how are you going to print it, and what happened to your solution of putting it into an array ? = Problem to be solve