Use case: The default developer portal of API Management service gives you five tabs (Home, Products, APIs, Application and Issues). But it has features where you can add more tabs as per your custom requirement.
How?: Here i have explained in easy steps to do the same.
Step 1: Create new page from the content blade and click Publish Now. (remember the permanent link created)
Add a new menu and Save
Select the newly added menu, click show and add custom link.
Url is the last segment of the permanent link we created in Step 1
Go to widgets blade and Add a new layer, if you want to show this tab only to authenticated user then add "authenticated" in the layer rule field or if you want to show it to all users then set it to "true".
Select the newly added layer in Step 4 and click Show. Then come to navigation section and click Add.
Choose menu widget
Add any Title, Name and choose the newly created menu under "For Menu" and "Save"
Step 8: Now go to developer portal and refresh you should see the new tab.
Now logout of your developer portal, you should see that the newly added tab is not visible.