To add more properties to an existing group:
- On the My Portfolio tab, in the Properties box, click "Manage Groups"
- On the Manage Groups page, locate the group that you want to edit
- Click Edit to the right of this group's name
- On the Edit Group page, under step 2 ("Edit the Properties Added to the Group"), click Select Properties
- On the Select Properties page, click the checkboxes to the left of all properties you wish to have included in the group
- When you are finished making these selections, click "Apply Selection"
- When you are back on the Edit Group page, click "Edit Group" to finalize these changes