Creating action button schedule condition

Hi guys,

Does anybody know if it is possible to create a formula as a action button schedule condition?

We need something like this:

&CRM Business Activity.System Status& u2260 I1005

and &Current Date + Time& + 2 = &Planned Date&

Reading this condition means: If status is not completed and current date + 2 day is equals to planned date then execute the action.

The problem is, we could not find a way to add 2 days to the current date.

The configuration we are talking about is:

IMG->CRM->Basic Functions->Actions->Actions in Transaction->Change Actions and Conditions->Define Conditions.

Any help is welcome.

Regards,

Lalas