Edit your logical star to modify any of the extensions that you had
previously added or to add further extensions.
Navigate the Semantic Model Extensions page, under Customizations Sandbox,
hover over an applicable sandbox to view Actions, and
then click View Sandbox.
On the selected sandbox Details page, click Perform
Action, and then select Manage Logical
Star.
In Perform Action, select Edit Logical Star'
To select the prebuilt objects, select Out of the box,
select a subject area and an applicable fact within the selected subject area,
and then click Next. Select Custom
to add custom objects to the logical star, select the applicable fact, and then
click Next.
On the Logical Star – Fact page, click Manage Dimension
and proceed with the steps discussed in Manage Dimensions.