With my Galaxy J7 phone I could once go to Recent Calls, pick out a number and, if I pressed and held the number, I could go to Details, which would allow me to block the number if I choose. Now for some reason, when I press and hold a number in Recent Calls, the only option is Delete. How do I get my blocking option back? I don't want to manually have to enter the number on my Blocked Calls list every time. Thanks.