In a Groove workspace, all members except for Guests can edit items in a Lists tool. In a SharePoint workspace, your ability to edit items depends on permissions defined on the SharePoint server.
Some custom Lists tools contain form views, which allow you to display items with a different layout. To change a form view, on the View tab, click the Form View drop-down menu and then click the form view you want.
Click the item you want to edit, and press ENTER.
Edit the item form fields as needed.
Note: Field editing features correspond to those found in Microsoft Office InfoPath forms. For example, if you select a rich-text field, the Ribbon offers the same text formatting features found in InfoPath for rich-text editing.
Save your changes.