Thank you Mipey
But it is necessary for me, that the parametre was in function
As I have understood it is impossible to make.
Or it is possible
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I have made as you have told.
But ,again shows an error if to call function 2 times.
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I have found other exit from my problem.
Instead of 'Add parameter' ,I will make a 'array' or 'variables'.
In it I will add function parametres.