Picking date determination

Hi,

For a correct schedulation, is it possible, when I create a delivery, that the Picking date is equal to the creation date not to the Planned GI?

For example, today I create a new delivery :

- Picking date (LIKP-KODAT) is on 28th June, I need will be in automatic equal to 14th June.

- Planned GI (LIKP-WADAT) is ok on 28th June.

Thanks and regards.

Antonio