Configure Opportunity Page Layout - Lightning

If you are not installing to Lightning, please go to Step 13 to install to Classic
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To configure the Opportunity page layout, go to Opportunities here and open any Opportunity Record
* Make sure you view 'All Records' so that an Opportunity Record will be displayed

From an open Opportunity Record, go to the Gear Icon in the top right
Select Edit Page
In the page layout workspace area, click on any existing Tab (e.g. Activity, Chatter, Details...)
On the right panel, click Add Tab (A new item named ‘Detail’ will appear at the bottom of the tab list)
Select the new Detail tab
From the tab name menu, select Custom
Enter Relationship Map in the Custom Tab Label field
Click Done to add the new Relationship Map tab
Click on the new 'Relationship Map' tab in the page layout work space area, this will reveal the empty component space
Drag ClosePlan: Opp. Relationship from the left panel under the section Custom - Managed to the to the empty component space
On the left panel menu find ClosePlan: Opportunity Overview
Drag it into the layout to the top of the narrow column on the right, or to a place of your choosing
Click Save in the top right corner to save the changes to the page layout
You may also be prompted to activate the page

Click on the Activate button
Click Assign as Org Default
‍Click Save

Click the white arrow on the blue field in the top left corner to complete this step
Continue to Step 12