CrystalReport - pass current value as key

Hello,

my goal is create a layout which will use only current value

I have card 'Opportunity' where is field OOPR.Name

In CrystalRepoort I am trying two ways:

1) with formula

{OOPR.Name} = {OOPR.Name}

result shows all records and not what is currently opened on card Opportunity

2) next approach which I have tried was:
create in Parameter Fields

Name: OPP_name

List of Values: Dynamic

Value: OOPR-Name

Parameters: OPP_name

and {OOPR.Name} = {?OPP_name}

but in this way it shows me Dropdown menu for choose the name

please know anybody how to pass current value from field 'Name' ?

Thank You