Making key date variable optional on selection screen

Hi All,

My query is based on time dependent data and I want user to specify key date during execution. I created variable for the same with setting "Optional". But still it asks user to enter key date everytime as if it is a mandatory.

Is there anything i am missing out? Doesnt it take a current date as key date if no value is specified?

Or is there a way to populate keydate variable by current date?

I am on 2004s. Please let me know. Thanks in advance.

-Abhijit