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Expand the sidebar and click Communities.
A list of communities appears.
Click Global Community.
The community homepage appears.
Hiding the global community
The global community is useful if you have a large organisation with a single user group and an open taxonomy. However, if users in your organisation are segmented into lots of different groups and users are mapped to different communities using audiences, it is better to ,
it may be better to use audiences to map them to different communities and hide the global community.
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Click Design Studio.
Click the Community specific tab.
From the Edit layout dropdown, select Global Community.
Select Use custom layout.
Drag widgets onto the layout grid and adjust their size and positions as required.
When you have finished customising the layout, click Publish.