Hi Patricia, So do you just want to show the calendar within a field on a task? I.e. having it display the whole time? If so I don't think that's possible. As another option you could go to Reporting, then Calendars. Then create a calendar to show what you want, then create a dashboard and add the calendar to the dashboard. Then, add the dashboard onto your project tabs by customising the tabs or layout template. Re the approval date, which exact field are you talking about? If you just want to add 6 weeks to a date field you could do this by adding a custom calculated field with the ADDDAYS function.
Regards, David Cornwell